Home / 272,228.13-408,340.80-69,823.31

Finding the Fourth Proportional to 272,228.13, 408,340.80 and 69,823.31

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Solution

The fourth proportional to 272,228.13, 408,340.80 and 69,823.31 is: 104,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,228.13 : 408,340.80 = 69,823.31 : x
  2. Step 2: Convert to fraction form
    272,228.13/408,340.80 = 69,823.31/x
  3. Step 3: Cross multiply
    272,228.13x = 408,340.80 × 69,823.31
  4. Step 4: Simplify right side
    272,228.13x = 28,511,704,222.34
  5. Step 5: Solve for x
    x = 28,511,704,222.34/272,228.13
  6. Step 6: Final answer
    x = 104,734.60

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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.