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Finding the Fourth Proportional to 284,371.39, 392,427.07 and 157,044.25

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Solution

The fourth proportional to 284,371.39, 392,427.07 and 157,044.25 is: 216,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,371.39 : 392,427.07 = 157,044.25 : x
  2. Step 2: Convert to fraction form
    284,371.39/392,427.07 = 157,044.25/x
  3. Step 3: Cross multiply
    284,371.39x = 392,427.07 × 157,044.25
  4. Step 4: Simplify right side
    284,371.39x = 61,628,414,887.85
  5. Step 5: Solve for x
    x = 61,628,414,887.85/284,371.39
  6. Step 6: Final answer
    x = 216,718.06

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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.