Home / 283,144.32-390,739.22-155,819.92

Finding the Fourth Proportional to 283,144.32, 390,739.22 and 155,819.92

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Solution

The fourth proportional to 283,144.32, 390,739.22 and 155,819.92 is: 215,031.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,144.32 : 390,739.22 = 155,819.92 : x
  2. Step 2: Convert to fraction form
    283,144.32/390,739.22 = 155,819.92/x
  3. Step 3: Cross multiply
    283,144.32x = 390,739.22 × 155,819.92
  4. Step 4: Simplify right side
    283,144.32x = 60,884,954,001.26
  5. Step 5: Solve for x
    x = 60,884,954,001.26/283,144.32
  6. Step 6: Final answer
    x = 215,031.52

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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.