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Finding the Fourth Proportional to 207,794.70, 310,914.45 and 137,810.70

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Solution

The fourth proportional to 207,794.70, 310,914.45 and 137,810.70 is: 206,200.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,794.70 : 310,914.45 = 137,810.70 : x
  2. Step 2: Convert to fraction form
    207,794.70/310,914.45 = 137,810.70/x
  3. Step 3: Cross multiply
    207,794.70x = 310,914.45 × 137,810.70
  4. Step 4: Simplify right side
    207,794.70x = 42,847,337,994.62
  5. Step 5: Solve for x
    x = 42,847,337,994.62/207,794.70
  6. Step 6: Final answer
    x = 206,200.34

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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.