Home / 329,217.15-493,728.30-139,675.11

Finding the Fourth Proportional to 329,217.15, 493,728.30 and 139,675.11

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Solution

The fourth proportional to 329,217.15, 493,728.30 and 139,675.11 is: 209,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,217.15 : 493,728.30 = 139,675.11 : x
  2. Step 2: Convert to fraction form
    329,217.15/493,728.30 = 139,675.11/x
  3. Step 3: Cross multiply
    329,217.15x = 493,728.30 × 139,675.11
  4. Step 4: Simplify right side
    329,217.15x = 68,961,554,612.61
  5. Step 5: Solve for x
    x = 68,961,554,612.61/329,217.15
  6. Step 6: Final answer
    x = 209,471.33

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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.