Home / 288,515.05-432,732.25-98,972.32

Finding the Fourth Proportional to 288,515.05, 432,732.25 and 98,972.32

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Solution

The fourth proportional to 288,515.05, 432,732.25 and 98,972.32 is: 148,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,515.05 : 432,732.25 = 98,972.32 : x
  2. Step 2: Convert to fraction form
    288,515.05/432,732.25 = 98,972.32/x
  3. Step 3: Cross multiply
    288,515.05x = 432,732.25 × 98,972.32
  4. Step 4: Simplify right side
    288,515.05x = 42,828,514,721.32
  5. Step 5: Solve for x
    x = 42,828,514,721.32/288,515.05
  6. Step 6: Final answer
    x = 148,444.65

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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.