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Finding the Fourth Proportional to 288,019.28, 432,029.13 and 98,481.07

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Solution

The fourth proportional to 288,019.28, 432,029.13 and 98,481.07 is: 147,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,019.28 : 432,029.13 = 98,481.07 : x
  2. Step 2: Convert to fraction form
    288,019.28/432,029.13 = 98,481.07/x
  3. Step 3: Cross multiply
    288,019.28x = 432,029.13 × 98,481.07
  4. Step 4: Simplify right side
    288,019.28x = 42,546,690,972.23
  5. Step 5: Solve for x
    x = 42,546,690,972.23/288,019.28
  6. Step 6: Final answer
    x = 147,721.68

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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.