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Finding the Fourth Proportional to 376,925.40, 520,151.02 and 207,155.88

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Solution

The fourth proportional to 376,925.40, 520,151.02 and 207,155.88 is: 285,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,925.40 : 520,151.02 = 207,155.88 : x
  2. Step 2: Convert to fraction form
    376,925.40/520,151.02 = 207,155.88/x
  3. Step 3: Cross multiply
    376,925.40x = 520,151.02 × 207,155.88
  4. Step 4: Simplify right side
    376,925.40x = 107,752,341,763.11
  5. Step 5: Solve for x
    x = 107,752,341,763.11/376,925.40
  6. Step 6: Final answer
    x = 285,871.80

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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.