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Finding the Fourth Proportional to 377,791, 521,351.58 and 208,024.72

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Solution

The fourth proportional to 377,791, 521,351.58 and 208,024.72 is: 287,074.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,791 : 521,351.58 = 208,024.72 : x
  2. Step 2: Convert to fraction form
    377,791/521,351.58 = 208,024.72/x
  3. Step 3: Cross multiply
    377,791x = 521,351.58 × 208,024.72
  4. Step 4: Simplify right side
    377,791x = 108,454,016,451.06
  5. Step 5: Solve for x
    x = 108,454,016,451.06/377,791
  6. Step 6: Final answer
    x = 287,074.11

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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.