Home / 518,002.36-777,057.55-198,153.61

Finding the Fourth Proportional to 518,002.36, 777,057.55 and 198,153.61

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Solution

The fourth proportional to 518,002.36, 777,057.55 and 198,153.61 is: 297,251.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,002.36 : 777,057.55 = 198,153.61 : x
  2. Step 2: Convert to fraction form
    518,002.36/777,057.55 = 198,153.61/x
  3. Step 3: Cross multiply
    518,002.36x = 777,057.55 × 198,153.61
  4. Step 4: Simplify right side
    518,002.36x = 153,976,756,272.23
  5. Step 5: Solve for x
    x = 153,976,756,272.23/518,002.36
  6. Step 6: Final answer
    x = 297,251.07

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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.