Home / 284,156.72-392,139.48-156,832.28

Finding the Fourth Proportional to 284,156.72, 392,139.48 and 156,832.28

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Solution

The fourth proportional to 284,156.72, 392,139.48 and 156,832.28 is: 216,430.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,156.72 : 392,139.48 = 156,832.28 : x
  2. Step 2: Convert to fraction form
    284,156.72/392,139.48 = 156,832.28/x
  3. Step 3: Cross multiply
    284,156.72x = 392,139.48 × 156,832.28
  4. Step 4: Simplify right side
    284,156.72x = 61,500,128,726.41
  5. Step 5: Solve for x
    x = 61,500,128,726.41/284,156.72
  6. Step 6: Final answer
    x = 216,430.32

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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.