Home / 239,767.20-359,132.40-213,501.60

Finding the Fourth Proportional to 239,767.20, 359,132.40 and 213,501.60

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Solution

The fourth proportional to 239,767.20, 359,132.40 and 213,501.60 is: 319,790.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,767.20 : 359,132.40 = 213,501.60 : x
  2. Step 2: Convert to fraction form
    239,767.20/359,132.40 = 213,501.60/x
  3. Step 3: Cross multiply
    239,767.20x = 359,132.40 × 213,501.60
  4. Step 4: Simplify right side
    239,767.20x = 76,675,342,011.84
  5. Step 5: Solve for x
    x = 76,675,342,011.84/239,767.20
  6. Step 6: Final answer
    x = 319,790.79

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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.