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Finding the Fourth Proportional to 207,602.87, 286,538.51 and 135,941.15

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Solution

The fourth proportional to 207,602.87, 286,538.51 and 135,941.15 is: 187,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,602.87 : 286,538.51 = 135,941.15 : x
  2. Step 2: Convert to fraction form
    207,602.87/286,538.51 = 135,941.15/x
  3. Step 3: Cross multiply
    207,602.87x = 286,538.51 × 135,941.15
  4. Step 4: Simplify right side
    207,602.87x = 38,952,375,624.89
  5. Step 5: Solve for x
    x = 38,952,375,624.89/207,602.87
  6. Step 6: Final answer
    x = 187,629.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.