Home / 284,742.75-392,953.20-157,426.55

Finding the Fourth Proportional to 284,742.75, 392,953.20 and 157,426.55

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Solution

The fourth proportional to 284,742.75, 392,953.20 and 157,426.55 is: 217,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,742.75 : 392,953.20 = 157,426.55 : x
  2. Step 2: Convert to fraction form
    284,742.75/392,953.20 = 157,426.55/x
  3. Step 3: Cross multiply
    284,742.75x = 392,953.20 × 157,426.55
  4. Step 4: Simplify right side
    284,742.75x = 61,861,264,622.69
  5. Step 5: Solve for x
    x = 61,861,264,622.69/284,742.75
  6. Step 6: Final answer
    x = 217,253.17

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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.