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Finding the Fourth Proportional to 243,685.67, 365,586.83 and 123,442.79

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Solution

The fourth proportional to 243,685.67, 365,586.83 and 123,442.79 is: 185,193.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,685.67 : 365,586.83 = 123,442.79 : x
  2. Step 2: Convert to fraction form
    243,685.67/365,586.83 = 123,442.79/x
  3. Step 3: Cross multiply
    243,685.67x = 365,586.83 × 123,442.79
  4. Step 4: Simplify right side
    243,685.67x = 45,129,055,837.31
  5. Step 5: Solve for x
    x = 45,129,055,837.31/243,685.67
  6. Step 6: Final answer
    x = 185,193.72

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1.5x scale

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.