Home / 209,213.02-288,712.24-113,719.42

Finding the Fourth Proportional to 209,213.02, 288,712.24 and 113,719.42

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Solution

The fourth proportional to 209,213.02, 288,712.24 and 113,719.42 is: 156,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,213.02 : 288,712.24 = 113,719.42 : x
  2. Step 2: Convert to fraction form
    209,213.02/288,712.24 = 113,719.42/x
  3. Step 3: Cross multiply
    209,213.02x = 288,712.24 × 113,719.42
  4. Step 4: Simplify right side
    209,213.02x = 32,832,188,479.70
  5. Step 5: Solve for x
    x = 32,832,188,479.70/209,213.02
  6. Step 6: Final answer
    x = 156,931.86

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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.