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Finding the Fourth Proportional to 486,018, 729,065.07 and 131,026.59

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Solution

The fourth proportional to 486,018, 729,065.07 and 131,026.59 is: 196,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,018 : 729,065.07 = 131,026.59 : x
  2. Step 2: Convert to fraction form
    486,018/729,065.07 = 131,026.59/x
  3. Step 3: Cross multiply
    486,018x = 729,065.07 × 131,026.59
  4. Step 4: Simplify right side
    486,018x = 95,526,910,010.21
  5. Step 5: Solve for x
    x = 95,526,910,010.21/486,018
  6. Step 6: Final answer
    x = 196,550.15

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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.