Home / 406,649.15-561,167.75-225,357.32

Finding the Fourth Proportional to 406,649.15, 561,167.75 and 225,357.32

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Solution

The fourth proportional to 406,649.15, 561,167.75 and 225,357.32 is: 310,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,649.15 : 561,167.75 = 225,357.32 : x
  2. Step 2: Convert to fraction form
    406,649.15/561,167.75 = 225,357.32/x
  3. Step 3: Cross multiply
    406,649.15x = 561,167.75 × 225,357.32
  4. Step 4: Simplify right side
    406,649.15x = 126,463,256,277.81
  5. Step 5: Solve for x
    x = 126,463,256,277.81/406,649.15
  6. Step 6: Final answer
    x = 310,988.62

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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.