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Finding the Fourth Proportional to 510.82, 766.23 and 126.07

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Solution

The fourth proportional to 510.82, 766.23 and 126.07 is: 189.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.82 : 766.23 = 126.07 : x
  2. Step 2: Convert to fraction form
    510.82/766.23 = 126.07/x
  3. Step 3: Cross multiply
    510.82x = 766.23 × 126.07
  4. Step 4: Simplify right side
    510.82x = 96,598.62
  5. Step 5: Solve for x
    x = 96,598.62/510.82
  6. Step 6: Final answer
    x = 189.11

Related Problems

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Half scale
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Double scale
Find fourth proportional to 511.82, 767.73 and 127.07
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.