Home / 209,062.80-288,507.84-113,570.28

Finding the Fourth Proportional to 209,062.80, 288,507.84 and 113,570.28

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Solution

The fourth proportional to 209,062.80, 288,507.84 and 113,570.28 is: 156,727.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,062.80 : 288,507.84 = 113,570.28 : x
  2. Step 2: Convert to fraction form
    209,062.80/288,507.84 = 113,570.28/x
  3. Step 3: Cross multiply
    209,062.80x = 288,507.84 × 113,570.28
  4. Step 4: Simplify right side
    209,062.80x = 32,765,916,171.00
  5. Step 5: Solve for x
    x = 32,765,916,171.00/209,062.80
  6. Step 6: Final answer
    x = 156,727.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.