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Finding the Fourth Proportional to 377,253.12, 520,590 and 207,454.56

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Solution

The fourth proportional to 377,253.12, 520,590 and 207,454.56 is: 286,276.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,253.12 : 520,590 = 207,454.56 : x
  2. Step 2: Convert to fraction form
    377,253.12/520,590 = 207,454.56/x
  3. Step 3: Cross multiply
    377,253.12x = 520,590 × 207,454.56
  4. Step 4: Simplify right side
    377,253.12x = 107,998,769,390.40
  5. Step 5: Solve for x
    x = 107,998,769,390.40/377,253.12
  6. Step 6: Final answer
    x = 286,276.68

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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.