Home / 284,748.75-392,961.51-157,432.55

Finding the Fourth Proportional to 284,748.75, 392,961.51 and 157,432.55

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Solution

The fourth proportional to 284,748.75, 392,961.51 and 157,432.55 is: 217,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,748.75 : 392,961.51 = 157,432.55 : x
  2. Step 2: Convert to fraction form
    284,748.75/392,961.51 = 157,432.55/x
  3. Step 3: Cross multiply
    284,748.75x = 392,961.51 × 157,432.55
  4. Step 4: Simplify right side
    284,748.75x = 61,864,930,606.34
  5. Step 5: Solve for x
    x = 61,864,930,606.34/284,748.75
  6. Step 6: Final answer
    x = 217,261.47

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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.