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Finding the Fourth Proportional to 526.18, 727.48 and 503.22

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Solution

The fourth proportional to 526.18, 727.48 and 503.22 is: 695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.18 : 727.48 = 503.22 : x
  2. Step 2: Convert to fraction form
    526.18/727.48 = 503.22/x
  3. Step 3: Cross multiply
    526.18x = 727.48 × 503.22
  4. Step 4: Simplify right side
    526.18x = 366,082.49
  5. Step 5: Solve for x
    x = 366,082.49/526.18
  6. Step 6: Final answer
    x = 695.74

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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.