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Finding the Fourth Proportional to 495,009.25, 683,092.08 and 280,161.19

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Solution

The fourth proportional to 495,009.25, 683,092.08 and 280,161.19 is: 386,610.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,009.25 : 683,092.08 = 280,161.19 : x
  2. Step 2: Convert to fraction form
    495,009.25/683,092.08 = 280,161.19/x
  3. Step 3: Cross multiply
    495,009.25x = 683,092.08 × 280,161.19
  4. Step 4: Simplify right side
    495,009.25x = 191,375,890,012.38
  5. Step 5: Solve for x
    x = 191,375,890,012.38/495,009.25
  6. Step 6: Final answer
    x = 386,610.74

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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.