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Finding the Fourth Proportional to 377,473, 520,916.43 and 207,710.77

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Solution

The fourth proportional to 377,473, 520,916.43 and 207,710.77 is: 286,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,473 : 520,916.43 = 207,710.77 : x
  2. Step 2: Convert to fraction form
    377,473/520,916.43 = 207,710.77/x
  3. Step 3: Cross multiply
    377,473x = 520,916.43 × 207,710.77
  4. Step 4: Simplify right side
    377,473x = 108,199,952,780.95
  5. Step 5: Solve for x
    x = 108,199,952,780.95/377,473
  6. Step 6: Final answer
    x = 286,642.89

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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.