Home / 278,186.04-417,174.30-100,649.16

Finding the Fourth Proportional to 278,186.04, 417,174.30 and 100,649.16

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Solution

The fourth proportional to 278,186.04, 417,174.30 and 100,649.16 is: 150,935.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,186.04 : 417,174.30 = 100,649.16 : x
  2. Step 2: Convert to fraction form
    278,186.04/417,174.30 = 100,649.16/x
  3. Step 3: Cross multiply
    278,186.04x = 417,174.30 × 100,649.16
  4. Step 4: Simplify right side
    278,186.04x = 41,988,242,868.59
  5. Step 5: Solve for x
    x = 41,988,242,868.59/278,186.04
  6. Step 6: Final answer
    x = 150,935.84

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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.