Home / 209,934.30-314,785.86-143,449.50

Finding the Fourth Proportional to 209,934.30, 314,785.86 and 143,449.50

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Solution

The fourth proportional to 209,934.30, 314,785.86 and 143,449.50 is: 215,095.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,934.30 : 314,785.86 = 143,449.50 : x
  2. Step 2: Convert to fraction form
    209,934.30/314,785.86 = 143,449.50/x
  3. Step 3: Cross multiply
    209,934.30x = 314,785.86 × 143,449.50
  4. Step 4: Simplify right side
    209,934.30x = 45,155,874,224.07
  5. Step 5: Solve for x
    x = 45,155,874,224.07/209,934.30
  6. Step 6: Final answer
    x = 215,095.27

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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.