Home / 454,200.90-681,301.35-217,421.70

Finding the Fourth Proportional to 454,200.90, 681,301.35 and 217,421.70

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Solution

The fourth proportional to 454,200.90, 681,301.35 and 217,421.70 is: 326,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,200.90 : 681,301.35 = 217,421.70 : x
  2. Step 2: Convert to fraction form
    454,200.90/681,301.35 = 217,421.70/x
  3. Step 3: Cross multiply
    454,200.90x = 681,301.35 × 217,421.70
  4. Step 4: Simplify right side
    454,200.90x = 148,129,697,729.30
  5. Step 5: Solve for x
    x = 148,129,697,729.30/454,200.90
  6. Step 6: Final answer
    x = 326,132.55

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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.