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Finding the Fourth Proportional to 418,045.25, 576,905.49 and 227,058.69

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Solution

The fourth proportional to 418,045.25, 576,905.49 and 227,058.69 is: 313,342.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,045.25 : 576,905.49 = 227,058.69 : x
  2. Step 2: Convert to fraction form
    418,045.25/576,905.49 = 227,058.69/x
  3. Step 3: Cross multiply
    418,045.25x = 576,905.49 × 227,058.69
  4. Step 4: Simplify right side
    418,045.25x = 130,991,406,976.60
  5. Step 5: Solve for x
    x = 130,991,406,976.60/418,045.25
  6. Step 6: Final answer
    x = 313,342.65

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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.