Home / 212,926.80-319,390.20-195,723.60

Finding the Fourth Proportional to 212,926.80, 319,390.20 and 195,723.60

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Solution

The fourth proportional to 212,926.80, 319,390.20 and 195,723.60 is: 293,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,926.80 : 319,390.20 = 195,723.60 : x
  2. Step 2: Convert to fraction form
    212,926.80/319,390.20 = 195,723.60/x
  3. Step 3: Cross multiply
    212,926.80x = 319,390.20 × 195,723.60
  4. Step 4: Simplify right side
    212,926.80x = 62,512,199,748.72
  5. Step 5: Solve for x
    x = 62,512,199,748.72/212,926.80
  6. Step 6: Final answer
    x = 293,585.40

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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.