Home / 209,022.02-288,448.80-113,529.40

Finding the Fourth Proportional to 209,022.02, 288,448.80 and 113,529.40

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Solution

The fourth proportional to 209,022.02, 288,448.80 and 113,529.40 is: 156,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,022.02 : 288,448.80 = 113,529.40 : x
  2. Step 2: Convert to fraction form
    209,022.02/288,448.80 = 113,529.40/x
  3. Step 3: Cross multiply
    209,022.02x = 288,448.80 × 113,529.40
  4. Step 4: Simplify right side
    209,022.02x = 32,747,419,194.72
  5. Step 5: Solve for x
    x = 32,747,419,194.72/209,022.02
  6. Step 6: Final answer
    x = 156,669.71

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1.5x scale

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.