Home / 288,052.20-432,078.30-198,239.40

Finding the Fourth Proportional to 288,052.20, 432,078.30 and 198,239.40

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Solution

The fourth proportional to 288,052.20, 432,078.30 and 198,239.40 is: 297,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,052.20 : 432,078.30 = 198,239.40 : x
  2. Step 2: Convert to fraction form
    288,052.20/432,078.30 = 198,239.40/x
  3. Step 3: Cross multiply
    288,052.20x = 432,078.30 × 198,239.40
  4. Step 4: Simplify right side
    288,052.20x = 85,654,942,945.02
  5. Step 5: Solve for x
    x = 85,654,942,945.02/288,052.20
  6. Step 6: Final answer
    x = 297,359.10

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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.