Home / 399,226.40-598,849.20-118,752.80

Finding the Fourth Proportional to 399,226.40, 598,849.20 and 118,752.80

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Solution

The fourth proportional to 399,226.40, 598,849.20 and 118,752.80 is: 178,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,226.40 : 598,849.20 = 118,752.80 : x
  2. Step 2: Convert to fraction form
    399,226.40/598,849.20 = 118,752.80/x
  3. Step 3: Cross multiply
    399,226.40x = 598,849.20 × 118,752.80
  4. Step 4: Simplify right side
    399,226.40x = 71,115,019,277.76
  5. Step 5: Solve for x
    x = 71,115,019,277.76/399,226.40
  6. Step 6: Final answer
    x = 178,132.06

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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.