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Finding the Fourth Proportional to 370,451.79, 511,222.73 and 200,686.32

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Solution

The fourth proportional to 370,451.79, 511,222.73 and 200,686.32 is: 276,946.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,451.79 : 511,222.73 = 200,686.32 : x
  2. Step 2: Convert to fraction form
    370,451.79/511,222.73 = 200,686.32/x
  3. Step 3: Cross multiply
    370,451.79x = 511,222.73 × 200,686.32
  4. Step 4: Simplify right side
    370,451.79x = 102,595,407,380.62
  5. Step 5: Solve for x
    x = 102,595,407,380.62/370,451.79
  6. Step 6: Final answer
    x = 276,946.72

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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.