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Finding the Fourth Proportional to 377,121.52, 520,429.68 and 207,366.64

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Solution

The fourth proportional to 377,121.52, 520,429.68 and 207,366.64 is: 286,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,121.52 : 520,429.68 = 207,366.64 : x
  2. Step 2: Convert to fraction form
    377,121.52/520,429.68 = 207,366.64/x
  3. Step 3: Cross multiply
    377,121.52x = 520,429.68 × 207,366.64
  4. Step 4: Simplify right side
    377,121.52x = 107,919,754,097.88
  5. Step 5: Solve for x
    x = 107,919,754,097.88/377,121.52
  6. Step 6: Final answer
    x = 286,167.05

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1.5x scale

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.