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Finding the Fourth Proportional to 400,549.46, 552,720.45 and 239,372.42

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Solution

The fourth proportional to 400,549.46, 552,720.45 and 239,372.42 is: 330,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,549.46 : 552,720.45 = 239,372.42 : x
  2. Step 2: Convert to fraction form
    400,549.46/552,720.45 = 239,372.42/x
  3. Step 3: Cross multiply
    400,549.46x = 552,720.45 × 239,372.42
  4. Step 4: Simplify right side
    400,549.46x = 132,306,031,699.99
  5. Step 5: Solve for x
    x = 132,306,031,699.99/400,549.46
  6. Step 6: Final answer
    x = 330,311.35

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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.