Home / 217,387.20-326,080.80-154,401.60

Finding the Fourth Proportional to 217,387.20, 326,080.80 and 154,401.60

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Solution

The fourth proportional to 217,387.20, 326,080.80 and 154,401.60 is: 231,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,387.20 : 326,080.80 = 154,401.60 : x
  2. Step 2: Convert to fraction form
    217,387.20/326,080.80 = 154,401.60/x
  3. Step 3: Cross multiply
    217,387.20x = 326,080.80 × 154,401.60
  4. Step 4: Simplify right side
    217,387.20x = 50,347,397,249.28
  5. Step 5: Solve for x
    x = 50,347,397,249.28/217,387.20
  6. Step 6: Final answer
    x = 231,602.40

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1.5x scale

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.