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Finding the Fourth Proportional to 275,009.04, 412,517.40 and 78,017.04

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Solution

The fourth proportional to 275,009.04, 412,517.40 and 78,017.04 is: 117,026.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,009.04 : 412,517.40 = 78,017.04 : x
  2. Step 2: Convert to fraction form
    275,009.04/412,517.40 = 78,017.04/x
  3. Step 3: Cross multiply
    275,009.04x = 412,517.40 × 78,017.04
  4. Step 4: Simplify right side
    275,009.04x = 32,183,386,496.50
  5. Step 5: Solve for x
    x = 32,183,386,496.50/275,009.04
  6. Step 6: Final answer
    x = 117,026.65

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1.5x scale

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.