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Finding the Fourth Proportional to 371,332.40, 556,998.60 and 219,773.30

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Solution

The fourth proportional to 371,332.40, 556,998.60 and 219,773.30 is: 329,659.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,332.40 : 556,998.60 = 219,773.30 : x
  2. Step 2: Convert to fraction form
    371,332.40/556,998.60 = 219,773.30/x
  3. Step 3: Cross multiply
    371,332.40x = 556,998.60 × 219,773.30
  4. Step 4: Simplify right side
    371,332.40x = 122,413,420,417.38
  5. Step 5: Solve for x
    x = 122,413,420,417.38/371,332.40
  6. Step 6: Final answer
    x = 329,659.95

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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.