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Finding the Fourth Proportional to 288,620.10, 432,977.54 and 88,940.52

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Solution

The fourth proportional to 288,620.10, 432,977.54 and 88,940.52 is: 133,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,620.10 : 432,977.54 = 88,940.52 : x
  2. Step 2: Convert to fraction form
    288,620.10/432,977.54 = 88,940.52/x
  3. Step 3: Cross multiply
    288,620.10x = 432,977.54 × 88,940.52
  4. Step 4: Simplify right side
    288,620.10x = 38,509,247,111.22
  5. Step 5: Solve for x
    x = 38,509,247,111.22/288,620.10
  6. Step 6: Final answer
    x = 133,425.38

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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.