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Finding the Fourth Proportional to 207,602.57, 311,502.27 and 123,528.82

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Solution

The fourth proportional to 207,602.57, 311,502.27 and 123,528.82 is: 185,351.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,602.57 : 311,502.27 = 123,528.82 : x
  2. Step 2: Convert to fraction form
    207,602.57/311,502.27 = 123,528.82/x
  3. Step 3: Cross multiply
    207,602.57x = 311,502.27 × 123,528.82
  4. Step 4: Simplify right side
    207,602.57x = 38,479,507,840.42
  5. Step 5: Solve for x
    x = 38,479,507,840.42/207,602.57
  6. Step 6: Final answer
    x = 185,351.79

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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.