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Finding the Fourth Proportional to 377,113.62, 520,397.55 and 207,314.94

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Solution

The fourth proportional to 377,113.62, 520,397.55 and 207,314.94 is: 286,084.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,113.62 : 520,397.55 = 207,314.94 : x
  2. Step 2: Convert to fraction form
    377,113.62/520,397.55 = 207,314.94/x
  3. Step 3: Cross multiply
    377,113.62x = 520,397.55 × 207,314.94
  4. Step 4: Simplify right side
    377,113.62x = 107,886,186,854.40
  5. Step 5: Solve for x
    x = 107,886,186,854.40/377,113.62
  6. Step 6: Final answer
    x = 286,084.04

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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.