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Finding the Fourth Proportional to 388,253.96, 582,384.20 and 107,793.08

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Solution

The fourth proportional to 388,253.96, 582,384.20 and 107,793.08 is: 161,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,253.96 : 582,384.20 = 107,793.08 : x
  2. Step 2: Convert to fraction form
    388,253.96/582,384.20 = 107,793.08/x
  3. Step 3: Cross multiply
    388,253.96x = 582,384.20 × 107,793.08
  4. Step 4: Simplify right side
    388,253.96x = 62,776,986,661.34
  5. Step 5: Solve for x
    x = 62,776,986,661.34/388,253.96
  6. Step 6: Final answer
    x = 161,690.53

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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.