Home / 278,174.16-417,374.64-100,699.92

Finding the Fourth Proportional to 278,174.16, 417,374.64 and 100,699.92

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Solution

The fourth proportional to 278,174.16, 417,374.64 and 100,699.92 is: 151,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,174.16 : 417,374.64 = 100,699.92 : x
  2. Step 2: Convert to fraction form
    278,174.16/417,374.64 = 100,699.92/x
  3. Step 3: Cross multiply
    278,174.16x = 417,374.64 × 100,699.92
  4. Step 4: Simplify right side
    278,174.16x = 42,029,592,858.03
  5. Step 5: Solve for x
    x = 42,029,592,858.03/278,174.16
  6. Step 6: Final answer
    x = 151,090.93

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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.