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Finding the Fourth Proportional to 903.19, 1,246.36 and 510.13

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Solution

The fourth proportional to 903.19, 1,246.36 and 510.13 is: 703.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.19 : 1,246.36 = 510.13 : x
  2. Step 2: Convert to fraction form
    903.19/1,246.36 = 510.13/x
  3. Step 3: Cross multiply
    903.19x = 1,246.36 × 510.13
  4. Step 4: Simplify right side
    903.19x = 635,805.63
  5. Step 5: Solve for x
    x = 635,805.63/903.19
  6. Step 6: Final answer
    x = 703.96

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.