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Finding the Fourth Proportional to 495,168.86, 683,349.41 and 280,304.48

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Solution

The fourth proportional to 495,168.86, 683,349.41 and 280,304.48 is: 386,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,168.86 : 683,349.41 = 280,304.48 : x
  2. Step 2: Convert to fraction form
    495,168.86/683,349.41 = 280,304.48/x
  3. Step 3: Cross multiply
    495,168.86x = 683,349.41 × 280,304.48
  4. Step 4: Simplify right side
    495,168.86x = 191,545,899,626.83
  5. Step 5: Solve for x
    x = 191,545,899,626.83/495,168.86
  6. Step 6: Final answer
    x = 386,829.45

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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.