Home / 239,430.15-359,145.23-219,212.55

Finding the Fourth Proportional to 239,430.15, 359,145.23 and 219,212.55

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Solution

The fourth proportional to 239,430.15, 359,145.23 and 219,212.55 is: 328,818.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,430.15 : 359,145.23 = 219,212.55 : x
  2. Step 2: Convert to fraction form
    239,430.15/359,145.23 = 219,212.55/x
  3. Step 3: Cross multiply
    239,430.15x = 359,145.23 × 219,212.55
  4. Step 4: Simplify right side
    239,430.15x = 78,729,140,592.57
  5. Step 5: Solve for x
    x = 78,729,140,592.57/239,430.15
  6. Step 6: Final answer
    x = 328,818.83

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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.