Home / 379,280.18-523,429.08-218,180.90

Finding the Fourth Proportional to 379,280.18, 523,429.08 and 218,180.90

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Solution

The fourth proportional to 379,280.18, 523,429.08 and 218,180.90 is: 301,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,280.18 : 523,429.08 = 218,180.90 : x
  2. Step 2: Convert to fraction form
    379,280.18/523,429.08 = 218,180.90/x
  3. Step 3: Cross multiply
    379,280.18x = 523,429.08 × 218,180.90
  4. Step 4: Simplify right side
    379,280.18x = 114,202,227,760.57
  5. Step 5: Solve for x
    x = 114,202,227,760.57/379,280.18
  6. Step 6: Final answer
    x = 301,102.55

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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.