Home / 209,178.79-288,568.10-151,691.97

Finding the Fourth Proportional to 209,178.79, 288,568.10 and 151,691.97

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Solution

The fourth proportional to 209,178.79, 288,568.10 and 151,691.97 is: 209,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,178.79 : 288,568.10 = 151,691.97 : x
  2. Step 2: Convert to fraction form
    209,178.79/288,568.10 = 151,691.97/x
  3. Step 3: Cross multiply
    209,178.79x = 288,568.10 × 151,691.97
  4. Step 4: Simplify right side
    209,178.79x = 43,773,465,029.52
  5. Step 5: Solve for x
    x = 43,773,465,029.52/209,178.79
  6. Step 6: Final answer
    x = 209,263.40

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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.