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Finding the Fourth Proportional to 402,203.43, 555,079.28 and 230,087.22

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Solution

The fourth proportional to 402,203.43, 555,079.28 and 230,087.22 is: 317,542.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,203.43 : 555,079.28 = 230,087.22 : x
  2. Step 2: Convert to fraction form
    402,203.43/555,079.28 = 230,087.22/x
  3. Step 3: Cross multiply
    402,203.43x = 555,079.28 × 230,087.22
  4. Step 4: Simplify right side
    402,203.43x = 127,716,648,414.80
  5. Step 5: Solve for x
    x = 127,716,648,414.80/402,203.43
  6. Step 6: Final answer
    x = 317,542.41

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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.