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Finding the Fourth Proportional to 495,067.16, 683,194.89 and 280,248.74

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Solution

The fourth proportional to 495,067.16, 683,194.89 and 280,248.74 is: 386,744.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,067.16 : 683,194.89 = 280,248.74 : x
  2. Step 2: Convert to fraction form
    495,067.16/683,194.89 = 280,248.74/x
  3. Step 3: Cross multiply
    495,067.16x = 683,194.89 × 280,248.74
  4. Step 4: Simplify right side
    495,067.16x = 191,464,508,804.93
  5. Step 5: Solve for x
    x = 191,464,508,804.93/495,067.16
  6. Step 6: Final answer
    x = 386,744.52

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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.