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Finding the Fourth Proportional to 370,881.57, 511,882.10 and 217,919.73

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Solution

The fourth proportional to 370,881.57, 511,882.10 and 217,919.73 is: 300,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,881.57 : 511,882.10 = 217,919.73 : x
  2. Step 2: Convert to fraction form
    370,881.57/511,882.10 = 217,919.73/x
  3. Step 3: Cross multiply
    370,881.57x = 511,882.10 × 217,919.73
  4. Step 4: Simplify right side
    370,881.57x = 111,549,209,023.83
  5. Step 5: Solve for x
    x = 111,549,209,023.83/370,881.57
  6. Step 6: Final answer
    x = 300,767.73

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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.