Home / 284,780.18-392,962.29-157,438.46

Finding the Fourth Proportional to 284,780.18, 392,962.29 and 157,438.46

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Solution

The fourth proportional to 284,780.18, 392,962.29 and 157,438.46 is: 217,246.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,780.18 : 392,962.29 = 157,438.46 : x
  2. Step 2: Convert to fraction form
    284,780.18/392,962.29 = 157,438.46/x
  3. Step 3: Cross multiply
    284,780.18x = 392,962.29 × 157,438.46
  4. Step 4: Simplify right side
    284,780.18x = 61,867,377,775.67
  5. Step 5: Solve for x
    x = 61,867,377,775.67/284,780.18
  6. Step 6: Final answer
    x = 217,246.08

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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.