Home / 212,659.20-318,988.80-149,673.60

Finding the Fourth Proportional to 212,659.20, 318,988.80 and 149,673.60

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Solution

The fourth proportional to 212,659.20, 318,988.80 and 149,673.60 is: 224,510.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,659.20 : 318,988.80 = 149,673.60 : x
  2. Step 2: Convert to fraction form
    212,659.20/318,988.80 = 149,673.60/x
  3. Step 3: Cross multiply
    212,659.20x = 318,988.80 × 149,673.60
  4. Step 4: Simplify right side
    212,659.20x = 47,744,202,055.68
  5. Step 5: Solve for x
    x = 47,744,202,055.68/212,659.20
  6. Step 6: Final answer
    x = 224,510.40

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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.