Home / 406,768.23-561,281.22-225,480.06

Finding the Fourth Proportional to 406,768.23, 561,281.22 and 225,480.06

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Solution

The fourth proportional to 406,768.23, 561,281.22 and 225,480.06 is: 311,129.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,768.23 : 561,281.22 = 225,480.06 : x
  2. Step 2: Convert to fraction form
    406,768.23/561,281.22 = 225,480.06/x
  3. Step 3: Cross multiply
    406,768.23x = 561,281.22 × 225,480.06
  4. Step 4: Simplify right side
    406,768.23x = 126,557,723,162.47
  5. Step 5: Solve for x
    x = 126,557,723,162.47/406,768.23
  6. Step 6: Final answer
    x = 311,129.81

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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.