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Finding the Fourth Proportional to 406,433.88, 560,871.72 and 225,142.02

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Solution

The fourth proportional to 406,433.88, 560,871.72 and 225,142.02 is: 310,692.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,433.88 : 560,871.72 = 225,142.02 : x
  2. Step 2: Convert to fraction form
    406,433.88/560,871.72 = 225,142.02/x
  3. Step 3: Cross multiply
    406,433.88x = 560,871.72 × 225,142.02
  4. Step 4: Simplify right side
    406,433.88x = 126,275,792,001.67
  5. Step 5: Solve for x
    x = 126,275,792,001.67/406,433.88
  6. Step 6: Final answer
    x = 310,692.09

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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.