Home / 278,827.66-418,006.32-120,937.20

Finding the Fourth Proportional to 278,827.66, 418,006.32 and 120,937.20

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Solution

The fourth proportional to 278,827.66, 418,006.32 and 120,937.20 is: 181,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,827.66 : 418,006.32 = 120,937.20 : x
  2. Step 2: Convert to fraction form
    278,827.66/418,006.32 = 120,937.20/x
  3. Step 3: Cross multiply
    278,827.66x = 418,006.32 × 120,937.20
  4. Step 4: Simplify right side
    278,827.66x = 50,552,513,923.10
  5. Step 5: Solve for x
    x = 50,552,513,923.10/278,827.66
  6. Step 6: Final answer
    x = 181,303.80

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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.