Home / 454,271.40-681,407.10-217,492.20

Finding the Fourth Proportional to 454,271.40, 681,407.10 and 217,492.20

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Solution

The fourth proportional to 454,271.40, 681,407.10 and 217,492.20 is: 326,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,271.40 : 681,407.10 = 217,492.20 : x
  2. Step 2: Convert to fraction form
    454,271.40/681,407.10 = 217,492.20/x
  3. Step 3: Cross multiply
    454,271.40x = 681,407.10 × 217,492.20
  4. Step 4: Simplify right side
    454,271.40x = 148,200,729,274.62
  5. Step 5: Solve for x
    x = 148,200,729,274.62/454,271.40
  6. Step 6: Final answer
    x = 326,238.30

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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.