Home / 288,266.10-432,836.55-221,781.30

Finding the Fourth Proportional to 288,266.10, 432,836.55 and 221,781.30

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Solution

The fourth proportional to 288,266.10, 432,836.55 and 221,781.30 is: 333,008.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,266.10 : 432,836.55 = 221,781.30 : x
  2. Step 2: Convert to fraction form
    288,266.10/432,836.55 = 221,781.30/x
  3. Step 3: Cross multiply
    288,266.10x = 432,836.55 × 221,781.30
  4. Step 4: Simplify right side
    288,266.10x = 95,995,052,746.52
  5. Step 5: Solve for x
    x = 95,995,052,746.52/288,266.10
  6. Step 6: Final answer
    x = 333,008.47

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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.