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Finding the Fourth Proportional to 371,899, 557,935.98 and 122,581

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Solution

The fourth proportional to 371,899, 557,935.98 and 122,581 is: 183,900.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,899 : 557,935.98 = 122,581 : x
  2. Step 2: Convert to fraction form
    371,899/557,935.98 = 122,581/x
  3. Step 3: Cross multiply
    371,899x = 557,935.98 × 122,581
  4. Step 4: Simplify right side
    371,899x = 68,392,350,364.38
  5. Step 5: Solve for x
    x = 68,392,350,364.38/371,899
  6. Step 6: Final answer
    x = 183,900.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.