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Finding the Fourth Proportional to 526.97, 726.91 and 317.00

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Solution

The fourth proportional to 526.97, 726.91 and 317.00 is: 437.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.97 : 726.91 = 317.00 : x
  2. Step 2: Convert to fraction form
    526.97/726.91 = 317.00/x
  3. Step 3: Cross multiply
    526.97x = 726.91 × 317.00
  4. Step 4: Simplify right side
    526.97x = 230,426.04
  5. Step 5: Solve for x
    x = 230,426.04/526.97
  6. Step 6: Final answer
    x = 437.27

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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.