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Finding the Fourth Proportional to 370,337.78, 511,107.72 and 209,203.22

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Solution

The fourth proportional to 370,337.78, 511,107.72 and 209,203.22 is: 288,723.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,337.78 : 511,107.72 = 209,203.22 : x
  2. Step 2: Convert to fraction form
    370,337.78/511,107.72 = 209,203.22/x
  3. Step 3: Cross multiply
    370,337.78x = 511,107.72 × 209,203.22
  4. Step 4: Simplify right side
    370,337.78x = 106,925,380,790.86
  5. Step 5: Solve for x
    x = 106,925,380,790.86/370,337.78
  6. Step 6: Final answer
    x = 288,723.93

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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.