Home / 278,269.41-417,035.06-145,261.54

Finding the Fourth Proportional to 278,269.41, 417,035.06 and 145,261.54

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Solution

The fourth proportional to 278,269.41, 417,035.06 and 145,261.54 is: 217,699.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,269.41 : 417,035.06 = 145,261.54 : x
  2. Step 2: Convert to fraction form
    278,269.41/417,035.06 = 145,261.54/x
  3. Step 3: Cross multiply
    278,269.41x = 417,035.06 × 145,261.54
  4. Step 4: Simplify right side
    278,269.41x = 60,579,155,049.59
  5. Step 5: Solve for x
    x = 60,579,155,049.59/278,269.41
  6. Step 6: Final answer
    x = 217,699.66

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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.