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Finding the Fourth Proportional to 207,011.80, 310,517.70 and 180,767.80

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Solution

The fourth proportional to 207,011.80, 310,517.70 and 180,767.80 is: 271,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,011.80 : 310,517.70 = 180,767.80 : x
  2. Step 2: Convert to fraction form
    207,011.80/310,517.70 = 180,767.80/x
  3. Step 3: Cross multiply
    207,011.80x = 310,517.70 × 180,767.80
  4. Step 4: Simplify right side
    207,011.80x = 56,131,601,490.06
  5. Step 5: Solve for x
    x = 56,131,601,490.06/207,011.80
  6. Step 6: Final answer
    x = 271,151.70

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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.