Home / 284,882.40-393,130.92-157,555.20

Finding the Fourth Proportional to 284,882.40, 393,130.92 and 157,555.20

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Solution

The fourth proportional to 284,882.40, 393,130.92 and 157,555.20 is: 217,422.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,882.40 : 393,130.92 = 157,555.20 : x
  2. Step 2: Convert to fraction form
    284,882.40/393,130.92 = 157,555.20/x
  3. Step 3: Cross multiply
    284,882.40x = 393,130.92 × 157,555.20
  4. Step 4: Simplify right side
    284,882.40x = 61,939,820,726.78
  5. Step 5: Solve for x
    x = 61,939,820,726.78/284,882.40
  6. Step 6: Final answer
    x = 217,422.42

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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.