Home / 284,234.13-392,243.04-156,909.69

Finding the Fourth Proportional to 284,234.13, 392,243.04 and 156,909.69

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Solution

The fourth proportional to 284,234.13, 392,243.04 and 156,909.69 is: 216,535.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,234.13 : 392,243.04 = 156,909.69 : x
  2. Step 2: Convert to fraction form
    284,234.13/392,243.04 = 156,909.69/x
  3. Step 3: Cross multiply
    284,234.13x = 392,243.04 × 156,909.69
  4. Step 4: Simplify right side
    284,234.13x = 61,546,733,811.06
  5. Step 5: Solve for x
    x = 61,546,733,811.06/284,234.13
  6. Step 6: Final answer
    x = 216,535.34

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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.