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Finding the Fourth Proportional to 152,791.76, 228,978.12 and 115,320.08

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Solution

The fourth proportional to 152,791.76, 228,978.12 and 115,320.08 is: 172,821.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,791.76 : 228,978.12 = 115,320.08 : x
  2. Step 2: Convert to fraction form
    152,791.76/228,978.12 = 115,320.08/x
  3. Step 3: Cross multiply
    152,791.76x = 228,978.12 × 115,320.08
  4. Step 4: Simplify right side
    152,791.76x = 26,405,775,116.65
  5. Step 5: Solve for x
    x = 26,405,775,116.65/152,791.76
  6. Step 6: Final answer
    x = 172,821.98

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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.