Home / 209,807.28-314,755.77-67,660.65

Finding the Fourth Proportional to 209,807.28, 314,755.77 and 67,660.65

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Solution

The fourth proportional to 209,807.28, 314,755.77 and 67,660.65 is: 101,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,807.28 : 314,755.77 = 67,660.65 : x
  2. Step 2: Convert to fraction form
    209,807.28/314,755.77 = 67,660.65/x
  3. Step 3: Cross multiply
    209,807.28x = 314,755.77 × 67,660.65
  4. Step 4: Simplify right side
    209,807.28x = 21,296,579,989.45
  5. Step 5: Solve for x
    x = 21,296,579,989.45/209,807.28
  6. Step 6: Final answer
    x = 101,505.44

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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.