Home / 221,528.40-332,292.60-115,240.20

Finding the Fourth Proportional to 221,528.40, 332,292.60 and 115,240.20

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Solution

The fourth proportional to 221,528.40, 332,292.60 and 115,240.20 is: 172,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,528.40 : 332,292.60 = 115,240.20 : x
  2. Step 2: Convert to fraction form
    221,528.40/332,292.60 = 115,240.20/x
  3. Step 3: Cross multiply
    221,528.40x = 332,292.60 × 115,240.20
  4. Step 4: Simplify right side
    221,528.40x = 38,293,465,682.52
  5. Step 5: Solve for x
    x = 38,293,465,682.52/221,528.40
  6. Step 6: Final answer
    x = 172,860.30

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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.