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Finding the Fourth Proportional to 510.68, 705.20 and 324.48

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Solution

The fourth proportional to 510.68, 705.20 and 324.48 is: 448.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.68 : 705.20 = 324.48 : x
  2. Step 2: Convert to fraction form
    510.68/705.20 = 324.48/x
  3. Step 3: Cross multiply
    510.68x = 705.20 × 324.48
  4. Step 4: Simplify right side
    510.68x = 228,823.30
  5. Step 5: Solve for x
    x = 228,823.30/510.68
  6. Step 6: Final answer
    x = 448.08

Related Problems

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Double scale
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Similar ratio
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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.