Home / 354,769.20-532,153.80-221,799.60

Finding the Fourth Proportional to 354,769.20, 532,153.80 and 221,799.60

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Solution

The fourth proportional to 354,769.20, 532,153.80 and 221,799.60 is: 332,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,769.20 : 532,153.80 = 221,799.60 : x
  2. Step 2: Convert to fraction form
    354,769.20/532,153.80 = 221,799.60/x
  3. Step 3: Cross multiply
    354,769.20x = 532,153.80 × 221,799.60
  4. Step 4: Simplify right side
    354,769.20x = 118,031,499,978.48
  5. Step 5: Solve for x
    x = 118,031,499,978.48/354,769.20
  6. Step 6: Final answer
    x = 332,699.40

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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.