Home / 284,556.50-392,685.18-157,229.36

Finding the Fourth Proportional to 284,556.50, 392,685.18 and 157,229.36

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Solution

The fourth proportional to 284,556.50, 392,685.18 and 157,229.36 is: 216,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,556.50 : 392,685.18 = 157,229.36 : x
  2. Step 2: Convert to fraction form
    284,556.50/392,685.18 = 157,229.36/x
  3. Step 3: Cross multiply
    284,556.50x = 392,685.18 × 157,229.36
  4. Step 4: Simplify right side
    284,556.50x = 61,741,639,336.83
  5. Step 5: Solve for x
    x = 61,741,639,336.83/284,556.50
  6. Step 6: Final answer
    x = 216,974.98

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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.