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Finding the Fourth Proportional to 221,407.20, 332,110.80 and 203,036.40

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Solution

The fourth proportional to 221,407.20, 332,110.80 and 203,036.40 is: 304,554.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,407.20 : 332,110.80 = 203,036.40 : x
  2. Step 2: Convert to fraction form
    221,407.20/332,110.80 = 203,036.40/x
  3. Step 3: Cross multiply
    221,407.20x = 332,110.80 × 203,036.40
  4. Step 4: Simplify right side
    221,407.20x = 67,430,581,233.12
  5. Step 5: Solve for x
    x = 67,430,581,233.12/221,407.20
  6. Step 6: Final answer
    x = 304,554.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.