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Finding the Fourth Proportional to 495,167.61, 683,347.68 and 280,303.23

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Solution

The fourth proportional to 495,167.61, 683,347.68 and 280,303.23 is: 386,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,167.61 : 683,347.68 = 280,303.23 : x
  2. Step 2: Convert to fraction form
    495,167.61/683,347.68 = 280,303.23/x
  3. Step 3: Cross multiply
    495,167.61x = 683,347.68 × 280,303.23
  4. Step 4: Simplify right side
    495,167.61x = 191,544,561,917.01
  5. Step 5: Solve for x
    x = 191,544,561,917.01/495,167.61
  6. Step 6: Final answer
    x = 386,827.73

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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.