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Finding the Fourth Proportional to 355,120.60, 532,680.90 and 130,383.80

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Solution

The fourth proportional to 355,120.60, 532,680.90 and 130,383.80 is: 195,575.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,120.60 : 532,680.90 = 130,383.80 : x
  2. Step 2: Convert to fraction form
    355,120.60/532,680.90 = 130,383.80/x
  3. Step 3: Cross multiply
    355,120.60x = 532,680.90 × 130,383.80
  4. Step 4: Simplify right side
    355,120.60x = 69,452,959,929.42
  5. Step 5: Solve for x
    x = 69,452,959,929.42/355,120.60
  6. Step 6: Final answer
    x = 195,575.70

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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.