Home / 370,455.09-511,227.93-200,689.20

Finding the Fourth Proportional to 370,455.09, 511,227.93 and 200,689.20

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Solution

The fourth proportional to 370,455.09, 511,227.93 and 200,689.20 is: 276,951.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,455.09 : 511,227.93 = 200,689.20 : x
  2. Step 2: Convert to fraction form
    370,455.09/511,227.93 = 200,689.20/x
  3. Step 3: Cross multiply
    370,455.09x = 511,227.93 × 200,689.20
  4. Step 4: Simplify right side
    370,455.09x = 102,597,924,289.36
  5. Step 5: Solve for x
    x = 102,597,924,289.36/370,455.09
  6. Step 6: Final answer
    x = 276,951.04

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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.