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Finding the Fourth Proportional to 284,237.70, 392,245.62 and 156,910.56

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Solution

The fourth proportional to 284,237.70, 392,245.62 and 156,910.56 is: 216,535.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,237.70 : 392,245.62 = 156,910.56 : x
  2. Step 2: Convert to fraction form
    284,237.70/392,245.62 = 156,910.56/x
  3. Step 3: Cross multiply
    284,237.70x = 392,245.62 × 156,910.56
  4. Step 4: Simplify right side
    284,237.70x = 61,547,479,891.75
  5. Step 5: Solve for x
    x = 61,547,479,891.75/284,237.70
  6. Step 6: Final answer
    x = 216,535.24

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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.