Home / 209,272.40-313,908.60-146,286.80

Finding the Fourth Proportional to 209,272.40, 313,908.60 and 146,286.80

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Solution

The fourth proportional to 209,272.40, 313,908.60 and 146,286.80 is: 219,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,272.40 : 313,908.60 = 146,286.80 : x
  2. Step 2: Convert to fraction form
    209,272.40/313,908.60 = 146,286.80/x
  3. Step 3: Cross multiply
    209,272.40x = 313,908.60 × 146,286.80
  4. Step 4: Simplify right side
    209,272.40x = 45,920,684,586.48
  5. Step 5: Solve for x
    x = 45,920,684,586.48/209,272.40
  6. Step 6: Final answer
    x = 219,430.20

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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.