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Finding the Fourth Proportional to 284,496.05, 392,612.48 and 157,179.85

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Solution

The fourth proportional to 284,496.05, 392,612.48 and 157,179.85 is: 216,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,496.05 : 392,612.48 = 157,179.85 : x
  2. Step 2: Convert to fraction form
    284,496.05/392,612.48 = 157,179.85/x
  3. Step 3: Cross multiply
    284,496.05x = 392,612.48 × 157,179.85
  4. Step 4: Simplify right side
    284,496.05x = 61,710,770,714.53
  5. Step 5: Solve for x
    x = 61,710,770,714.53/284,496.05
  6. Step 6: Final answer
    x = 216,912.57

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1.5x scale

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.