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Finding the Fourth Proportional to 436,856.42, 655,284.06 and 137,363.19

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Solution

The fourth proportional to 436,856.42, 655,284.06 and 137,363.19 is: 206,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,856.42 : 655,284.06 = 137,363.19 : x
  2. Step 2: Convert to fraction form
    436,856.42/655,284.06 = 137,363.19/x
  3. Step 3: Cross multiply
    436,856.42x = 655,284.06 × 137,363.19
  4. Step 4: Simplify right side
    436,856.42x = 90,011,908,837.75
  5. Step 5: Solve for x
    x = 90,011,908,837.75/436,856.42
  6. Step 6: Final answer
    x = 206,044.61

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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.