Home / 406,603.28-561,115.82-225,318.23

Finding the Fourth Proportional to 406,603.28, 561,115.82 and 225,318.23

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Solution

The fourth proportional to 406,603.28, 561,115.82 and 225,318.23 is: 310,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,603.28 : 561,115.82 = 225,318.23 : x
  2. Step 2: Convert to fraction form
    406,603.28/561,115.82 = 225,318.23/x
  3. Step 3: Cross multiply
    406,603.28x = 561,115.82 × 225,318.23
  4. Step 4: Simplify right side
    406,603.28x = 126,429,619,455.23
  5. Step 5: Solve for x
    x = 126,429,619,455.23/406,603.28
  6. Step 6: Final answer
    x = 310,940.98

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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.