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Finding the Fourth Proportional to 258,259.70, 387,167.66 and 89,758.14

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Solution

The fourth proportional to 258,259.70, 387,167.66 and 89,758.14 is: 134,560.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,259.70 : 387,167.66 = 89,758.14 : x
  2. Step 2: Convert to fraction form
    258,259.70/387,167.66 = 89,758.14/x
  3. Step 3: Cross multiply
    258,259.70x = 387,167.66 × 89,758.14
  4. Step 4: Simplify right side
    258,259.70x = 34,751,449,029.75
  5. Step 5: Solve for x
    x = 34,751,449,029.75/258,259.70
  6. Step 6: Final answer
    x = 134,560.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.