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Finding the Fourth Proportional to 207,854.17, 312,280.62 and 133,119.52

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Solution

The fourth proportional to 207,854.17, 312,280.62 and 133,119.52 is: 199,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,854.17 : 312,280.62 = 133,119.52 : x
  2. Step 2: Convert to fraction form
    207,854.17/312,280.62 = 133,119.52/x
  3. Step 3: Cross multiply
    207,854.17x = 312,280.62 × 133,119.52
  4. Step 4: Simplify right side
    207,854.17x = 41,570,646,239.70
  5. Step 5: Solve for x
    x = 41,570,646,239.70/207,854.17
  6. Step 6: Final answer
    x = 199,999.10

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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.