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Finding the Fourth Proportional to 310,325.62, 428,249.52 and 174,359.56

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Solution

The fourth proportional to 310,325.62, 428,249.52 and 174,359.56 is: 240,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,325.62 : 428,249.52 = 174,359.56 : x
  2. Step 2: Convert to fraction form
    310,325.62/428,249.52 = 174,359.56/x
  3. Step 3: Cross multiply
    310,325.62x = 428,249.52 × 174,359.56
  4. Step 4: Simplify right side
    310,325.62x = 74,669,397,877.41
  5. Step 5: Solve for x
    x = 74,669,397,877.41/310,325.62
  6. Step 6: Final answer
    x = 240,616.29

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1.5x scale

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.