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Finding the Fourth Proportional to 377,302.36, 520,691.10 and 207,549.40

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Solution

The fourth proportional to 377,302.36, 520,691.10 and 207,549.40 is: 286,425.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,302.36 : 520,691.10 = 207,549.40 : x
  2. Step 2: Convert to fraction form
    377,302.36/520,691.10 = 207,549.40/x
  3. Step 3: Cross multiply
    377,302.36x = 520,691.10 × 207,549.40
  4. Step 4: Simplify right side
    377,302.36x = 108,069,125,390.34
  5. Step 5: Solve for x
    x = 108,069,125,390.34/377,302.36
  6. Step 6: Final answer
    x = 286,425.79

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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.