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Finding the Fourth Proportional to 258,195, 356,306.88 and 141,909.96

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Solution

The fourth proportional to 258,195, 356,306.88 and 141,909.96 is: 195,834.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,195 : 356,306.88 = 141,909.96 : x
  2. Step 2: Convert to fraction form
    258,195/356,306.88 = 141,909.96/x
  3. Step 3: Cross multiply
    258,195x = 356,306.88 × 141,909.96
  4. Step 4: Simplify right side
    258,195x = 50,563,495,088.52
  5. Step 5: Solve for x
    x = 50,563,495,088.52/258,195
  6. Step 6: Final answer
    x = 195,834.52

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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.