Home / 278,335.02-417,371.31-165,986.10

Finding the Fourth Proportional to 278,335.02, 417,371.31 and 165,986.10

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Solution

The fourth proportional to 278,335.02, 417,371.31 and 165,986.10 is: 248,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,335.02 : 417,371.31 = 165,986.10 : x
  2. Step 2: Convert to fraction form
    278,335.02/417,371.31 = 165,986.10/x
  3. Step 3: Cross multiply
    278,335.02x = 417,371.31 × 165,986.10
  4. Step 4: Simplify right side
    278,335.02x = 69,277,835,998.79
  5. Step 5: Solve for x
    x = 69,277,835,998.79/278,335.02
  6. Step 6: Final answer
    x = 248,900.90

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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.