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Finding the Fourth Proportional to 398,475.80, 597,387.97 and 185,376.54

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Solution

The fourth proportional to 398,475.80, 597,387.97 and 185,376.54 is: 277,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,475.80 : 597,387.97 = 185,376.54 : x
  2. Step 2: Convert to fraction form
    398,475.80/597,387.97 = 185,376.54/x
  3. Step 3: Cross multiply
    398,475.80x = 597,387.97 × 185,376.54
  4. Step 4: Simplify right side
    398,475.80x = 110,741,713,989.34
  5. Step 5: Solve for x
    x = 110,741,713,989.34/398,475.80
  6. Step 6: Final answer
    x = 277,913.28

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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.