Home / 209,041.97-288,479.34-113,548.64

Finding the Fourth Proportional to 209,041.97, 288,479.34 and 113,548.64

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Solution

The fourth proportional to 209,041.97, 288,479.34 and 113,548.64 is: 156,697.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,041.97 : 288,479.34 = 113,548.64 : x
  2. Step 2: Convert to fraction form
    209,041.97/288,479.34 = 113,548.64/x
  3. Step 3: Cross multiply
    209,041.97x = 288,479.34 × 113,548.64
  4. Step 4: Simplify right side
    209,041.97x = 32,756,435,282.70
  5. Step 5: Solve for x
    x = 32,756,435,282.70/209,041.97
  6. Step 6: Final answer
    x = 156,697.89

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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.