Home / 284,760.12-392,953.26-157,428.12

Finding the Fourth Proportional to 284,760.12, 392,953.26 and 157,428.12

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Solution

The fourth proportional to 284,760.12, 392,953.26 and 157,428.12 is: 217,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,760.12 : 392,953.26 = 157,428.12 : x
  2. Step 2: Convert to fraction form
    284,760.12/392,953.26 = 157,428.12/x
  3. Step 3: Cross multiply
    284,760.12x = 392,953.26 × 157,428.12
  4. Step 4: Simplify right side
    284,760.12x = 61,861,892,969.67
  5. Step 5: Solve for x
    x = 61,861,892,969.67/284,760.12
  6. Step 6: Final answer
    x = 217,242.12

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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.