Home / 230,301.78-345,190.61-140,145.65

Finding the Fourth Proportional to 230,301.78, 345,190.61 and 140,145.65

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Solution

The fourth proportional to 230,301.78, 345,190.61 and 140,145.65 is: 210,059.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,301.78 : 345,190.61 = 140,145.65 : x
  2. Step 2: Convert to fraction form
    230,301.78/345,190.61 = 140,145.65/x
  3. Step 3: Cross multiply
    230,301.78x = 345,190.61 × 140,145.65
  4. Step 4: Simplify right side
    230,301.78x = 48,376,963,120.03
  5. Step 5: Solve for x
    x = 48,376,963,120.03/230,301.78
  6. Step 6: Final answer
    x = 210,059.01

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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.