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Finding the Fourth Proportional to 406,479.96, 560,898.36 and 225,187.20

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Solution

The fourth proportional to 406,479.96, 560,898.36 and 225,187.20 is: 310,733.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,479.96 : 560,898.36 = 225,187.20 : x
  2. Step 2: Convert to fraction form
    406,479.96/560,898.36 = 225,187.20/x
  3. Step 3: Cross multiply
    406,479.96x = 560,898.36 × 225,187.20
  4. Step 4: Simplify right side
    406,479.96x = 126,307,131,172.99
  5. Step 5: Solve for x
    x = 126,307,131,172.99/406,479.96
  6. Step 6: Final answer
    x = 310,733.97

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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.