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Finding the Fourth Proportional to 288,511.72, 432,180.06 and 235,393

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Solution

The fourth proportional to 288,511.72, 432,180.06 and 235,393 is: 352,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,511.72 : 432,180.06 = 235,393 : x
  2. Step 2: Convert to fraction form
    288,511.72/432,180.06 = 235,393/x
  3. Step 3: Cross multiply
    288,511.72x = 432,180.06 × 235,393
  4. Step 4: Simplify right side
    288,511.72x = 101,732,160,863.58
  5. Step 5: Solve for x
    x = 101,732,160,863.58/288,511.72
  6. Step 6: Final answer
    x = 352,610.15

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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.