Home / 288,531.17-432,829.56-99,005.75

Finding the Fourth Proportional to 288,531.17, 432,829.56 and 99,005.75

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Solution

The fourth proportional to 288,531.17, 432,829.56 and 99,005.75 is: 148,519.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,531.17 : 432,829.56 = 99,005.75 : x
  2. Step 2: Convert to fraction form
    288,531.17/432,829.56 = 99,005.75/x
  3. Step 3: Cross multiply
    288,531.17x = 432,829.56 × 99,005.75
  4. Step 4: Simplify right side
    288,531.17x = 42,852,615,209.97
  5. Step 5: Solve for x
    x = 42,852,615,209.97/288,531.17
  6. Step 6: Final answer
    x = 148,519.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.