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Finding the Fourth Proportional to 302,939.55, 418,058.57 and 173,843.57

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Solution

The fourth proportional to 302,939.55, 418,058.57 and 173,843.57 is: 239,905.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,939.55 : 418,058.57 = 173,843.57 : x
  2. Step 2: Convert to fraction form
    302,939.55/418,058.57 = 173,843.57/x
  3. Step 3: Cross multiply
    302,939.55x = 418,058.57 × 173,843.57
  4. Step 4: Simplify right side
    302,939.55x = 72,676,791,318.38
  5. Step 5: Solve for x
    x = 72,676,791,318.38/302,939.55
  6. Step 6: Final answer
    x = 239,905.26

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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.