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Finding the Fourth Proportional to 526.90, 725.25 and 371.38

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Solution

The fourth proportional to 526.90, 725.25 and 371.38 is: 511.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.90 : 725.25 = 371.38 : x
  2. Step 2: Convert to fraction form
    526.90/725.25 = 371.38/x
  3. Step 3: Cross multiply
    526.90x = 725.25 × 371.38
  4. Step 4: Simplify right side
    526.90x = 269,343.35
  5. Step 5: Solve for x
    x = 269,343.35/526.90
  6. Step 6: Final answer
    x = 511.18

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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.