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Finding the Fourth Proportional to 370,492.92, 511,273.55 and 209,344.57

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Solution

The fourth proportional to 370,492.92, 511,273.55 and 209,344.57 is: 288,891.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,492.92 : 511,273.55 = 209,344.57 : x
  2. Step 2: Convert to fraction form
    370,492.92/511,273.55 = 209,344.57/x
  3. Step 3: Cross multiply
    370,492.92x = 511,273.55 × 209,344.57
  4. Step 4: Simplify right side
    370,492.92x = 107,032,340,722.30
  5. Step 5: Solve for x
    x = 107,032,340,722.30/370,492.92
  6. Step 6: Final answer
    x = 288,891.73

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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.