Home / 345,923.10-518,884.65-146,191.68

Finding the Fourth Proportional to 345,923.10, 518,884.65 and 146,191.68

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Solution

The fourth proportional to 345,923.10, 518,884.65 and 146,191.68 is: 219,287.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,923.10 : 518,884.65 = 146,191.68 : x
  2. Step 2: Convert to fraction form
    345,923.10/518,884.65 = 146,191.68/x
  3. Step 3: Cross multiply
    345,923.10x = 518,884.65 × 146,191.68
  4. Step 4: Simplify right side
    345,923.10x = 75,856,618,709.71
  5. Step 5: Solve for x
    x = 75,856,618,709.71/345,923.10
  6. Step 6: Final answer
    x = 219,287.52

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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.