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Finding the Fourth Proportional to 436,885.80, 655,422.26 and 247,435.71

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Solution

The fourth proportional to 436,885.80, 655,422.26 and 247,435.71 is: 371,206.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,885.80 : 655,422.26 = 247,435.71 : x
  2. Step 2: Convert to fraction form
    436,885.80/655,422.26 = 247,435.71/x
  3. Step 3: Cross multiply
    436,885.80x = 655,422.26 × 247,435.71
  4. Step 4: Simplify right side
    436,885.80x = 162,174,871,015.73
  5. Step 5: Solve for x
    x = 162,174,871,015.73/436,885.80
  6. Step 6: Final answer
    x = 371,206.55

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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.