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Finding the Fourth Proportional to 206,712.70, 310,069.05 and 180,468.70

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Solution

The fourth proportional to 206,712.70, 310,069.05 and 180,468.70 is: 270,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,712.70 : 310,069.05 = 180,468.70 : x
  2. Step 2: Convert to fraction form
    206,712.70/310,069.05 = 180,468.70/x
  3. Step 3: Cross multiply
    206,712.70x = 310,069.05 × 180,468.70
  4. Step 4: Simplify right side
    206,712.70x = 55,957,758,363.74
  5. Step 5: Solve for x
    x = 55,957,758,363.74/206,712.70
  6. Step 6: Final answer
    x = 270,703.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.