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Finding the Fourth Proportional to 503,209.90, 754,925.73 and 218,945.08

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Solution

The fourth proportional to 503,209.90, 754,925.73 and 218,945.08 is: 328,465.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,209.90 : 754,925.73 = 218,945.08 : x
  2. Step 2: Convert to fraction form
    503,209.90/754,925.73 = 218,945.08/x
  3. Step 3: Cross multiply
    503,209.90x = 754,925.73 × 218,945.08
  4. Step 4: Simplify right side
    503,209.90x = 165,287,274,348.91
  5. Step 5: Solve for x
    x = 165,287,274,348.91/503,209.90
  6. Step 6: Final answer
    x = 328,465.86

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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.