Home / 318,492.26-477,812.20-108,130.20

Finding the Fourth Proportional to 318,492.26, 477,812.20 and 108,130.20

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Solution

The fourth proportional to 318,492.26, 477,812.20 and 108,130.20 is: 162,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,492.26 : 477,812.20 = 108,130.20 : x
  2. Step 2: Convert to fraction form
    318,492.26/477,812.20 = 108,130.20/x
  3. Step 3: Cross multiply
    318,492.26x = 477,812.20 × 108,130.20
  4. Step 4: Simplify right side
    318,492.26x = 51,665,928,748.44
  5. Step 5: Solve for x
    x = 51,665,928,748.44/318,492.26
  6. Step 6: Final answer
    x = 162,220.36

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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.