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Finding the Fourth Proportional to 288,620.20, 432,930.30 and 235,476.10

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Solution

The fourth proportional to 288,620.20, 432,930.30 and 235,476.10 is: 353,214.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,620.20 : 432,930.30 = 235,476.10 : x
  2. Step 2: Convert to fraction form
    288,620.20/432,930.30 = 235,476.10/x
  3. Step 3: Cross multiply
    288,620.20x = 432,930.30 × 235,476.10
  4. Step 4: Simplify right side
    288,620.20x = 101,944,738,615.83
  5. Step 5: Solve for x
    x = 101,944,738,615.83/288,620.20
  6. Step 6: Final answer
    x = 353,214.15

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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.