Home / 278,270.41-417,036.56-145,262.54

Finding the Fourth Proportional to 278,270.41, 417,036.56 and 145,262.54

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Solution

The fourth proportional to 278,270.41, 417,036.56 and 145,262.54 is: 217,701.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,270.41 : 417,036.56 = 145,262.54 : x
  2. Step 2: Convert to fraction form
    278,270.41/417,036.56 = 145,262.54/x
  3. Step 3: Cross multiply
    278,270.41x = 417,036.56 × 145,262.54
  4. Step 4: Simplify right side
    278,270.41x = 60,579,789,978.46
  5. Step 5: Solve for x
    x = 60,579,789,978.46/278,270.41
  6. Step 6: Final answer
    x = 217,701.16

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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.