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Finding the Fourth Proportional to 416,839.79, 575,239.05 and 225,853.20

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Solution

The fourth proportional to 416,839.79, 575,239.05 and 225,853.20 is: 311,677.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,839.79 : 575,239.05 = 225,853.20 : x
  2. Step 2: Convert to fraction form
    416,839.79/575,239.05 = 225,853.20/x
  3. Step 3: Cross multiply
    416,839.79x = 575,239.05 × 225,853.20
  4. Step 4: Simplify right side
    416,839.79x = 129,919,580,207.46
  5. Step 5: Solve for x
    x = 129,919,580,207.46/416,839.79
  6. Step 6: Final answer
    x = 311,677.49

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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.