Home / 330,981.60-496,472.40-198,271.20

Finding the Fourth Proportional to 330,981.60, 496,472.40 and 198,271.20

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Solution

The fourth proportional to 330,981.60, 496,472.40 and 198,271.20 is: 297,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,981.60 : 496,472.40 = 198,271.20 : x
  2. Step 2: Convert to fraction form
    330,981.60/496,472.40 = 198,271.20/x
  3. Step 3: Cross multiply
    330,981.60x = 496,472.40 × 198,271.20
  4. Step 4: Simplify right side
    330,981.60x = 98,436,178,514.88
  5. Step 5: Solve for x
    x = 98,436,178,514.88/330,981.60
  6. Step 6: Final answer
    x = 297,406.80

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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.