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Finding the Fourth Proportional to 167,820.40, 251,147.40 and 115,332.40

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Solution

The fourth proportional to 167,820.40, 251,147.40 and 115,332.40 is: 172,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,820.40 : 251,147.40 = 115,332.40 : x
  2. Step 2: Convert to fraction form
    167,820.40/251,147.40 = 115,332.40/x
  3. Step 3: Cross multiply
    167,820.40x = 251,147.40 × 115,332.40
  4. Step 4: Simplify right side
    167,820.40x = 28,965,432,395.76
  5. Step 5: Solve for x
    x = 28,965,432,395.76/167,820.40
  6. Step 6: Final answer
    x = 172,597.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.