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Finding the Fourth Proportional to 406,393.35, 560,841.28 and 225,105.25

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Solution

The fourth proportional to 406,393.35, 560,841.28 and 225,105.25 is: 310,655.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,393.35 : 560,841.28 = 225,105.25 : x
  2. Step 2: Convert to fraction form
    406,393.35/560,841.28 = 225,105.25/x
  3. Step 3: Cross multiply
    406,393.35x = 560,841.28 × 225,105.25
  4. Step 4: Simplify right side
    406,393.35x = 126,248,316,544.72
  5. Step 5: Solve for x
    x = 126,248,316,544.72/406,393.35
  6. Step 6: Final answer
    x = 310,655.47

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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.