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Finding the Fourth Proportional to 406,733.71, 561,326.12 and 225,502.48

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Solution

The fourth proportional to 406,733.71, 561,326.12 and 225,502.48 is: 311,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,733.71 : 561,326.12 = 225,502.48 : x
  2. Step 2: Convert to fraction form
    406,733.71/561,326.12 = 225,502.48/x
  3. Step 3: Cross multiply
    406,733.71x = 561,326.12 × 225,502.48
  4. Step 4: Simplify right side
    406,733.71x = 126,580,432,148.78
  5. Step 5: Solve for x
    x = 126,580,432,148.78/406,733.71
  6. Step 6: Final answer
    x = 311,212.05

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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.