Home / 278,187.04-417,175.80-100,650.16

Finding the Fourth Proportional to 278,187.04, 417,175.80 and 100,650.16

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Solution

The fourth proportional to 278,187.04, 417,175.80 and 100,650.16 is: 150,937.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,187.04 : 417,175.80 = 100,650.16 : x
  2. Step 2: Convert to fraction form
    278,187.04/417,175.80 = 100,650.16/x
  3. Step 3: Cross multiply
    278,187.04x = 417,175.80 × 100,650.16
  4. Step 4: Simplify right side
    278,187.04x = 41,988,811,018.13
  5. Step 5: Solve for x
    x = 41,988,811,018.13/278,187.04
  6. Step 6: Final answer
    x = 150,937.34

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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.