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Finding the Fourth Proportional to 318,377.79, 439,363.44 and 175,134.15

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Solution

The fourth proportional to 318,377.79, 439,363.44 and 175,134.15 is: 241,686.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,377.79 : 439,363.44 = 175,134.15 : x
  2. Step 2: Convert to fraction form
    318,377.79/439,363.44 = 175,134.15/x
  3. Step 3: Cross multiply
    318,377.79x = 439,363.44 × 175,134.15
  4. Step 4: Simplify right side
    318,377.79x = 76,947,542,605.48
  5. Step 5: Solve for x
    x = 76,947,542,605.48/318,377.79
  6. Step 6: Final answer
    x = 241,686.28

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1.5x scale

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.