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Finding the Fourth Proportional to 220,287.38, 330,431.31 and 60,364.67

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Solution

The fourth proportional to 220,287.38, 330,431.31 and 60,364.67 is: 90,547.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,287.38 : 330,431.31 = 60,364.67 : x
  2. Step 2: Convert to fraction form
    220,287.38/330,431.31 = 60,364.67/x
  3. Step 3: Cross multiply
    220,287.38x = 330,431.31 × 60,364.67
  4. Step 4: Simplify right side
    220,287.38x = 19,946,375,333.66
  5. Step 5: Solve for x
    x = 19,946,375,333.66/220,287.38
  6. Step 6: Final answer
    x = 90,547.07

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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.