Home / 318,191.40-439,061.88-197,288.58

Finding the Fourth Proportional to 318,191.40, 439,061.88 and 197,288.58

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Solution

The fourth proportional to 318,191.40, 439,061.88 and 197,288.58 is: 272,232.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,191.40 : 439,061.88 = 197,288.58 : x
  2. Step 2: Convert to fraction form
    318,191.40/439,061.88 = 197,288.58/x
  3. Step 3: Cross multiply
    318,191.40x = 439,061.88 × 197,288.58
  4. Step 4: Simplify right side
    318,191.40x = 86,621,894,837.33
  5. Step 5: Solve for x
    x = 86,621,894,837.33/318,191.40
  6. Step 6: Final answer
    x = 272,232.04

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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.