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Finding the Fourth Proportional to 377,071.61, 520,456.79 and 249,700.73

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Solution

The fourth proportional to 377,071.61, 520,456.79 and 249,700.73 is: 344,651.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,071.61 : 520,456.79 = 249,700.73 : x
  2. Step 2: Convert to fraction form
    377,071.61/520,456.79 = 249,700.73/x
  3. Step 3: Cross multiply
    377,071.61x = 520,456.79 × 249,700.73
  4. Step 4: Simplify right side
    377,071.61x = 129,958,438,418.43
  5. Step 5: Solve for x
    x = 129,958,438,418.43/377,071.61
  6. Step 6: Final answer
    x = 344,651.88

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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.