Home / 345,857.60-518,938.88-146,315.68

Finding the Fourth Proportional to 345,857.60, 518,938.88 and 146,315.68

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Solution

The fourth proportional to 345,857.60, 518,938.88 and 146,315.68 is: 219,538.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,857.60 : 518,938.88 = 146,315.68 : x
  2. Step 2: Convert to fraction form
    345,857.60/518,938.88 = 146,315.68/x
  3. Step 3: Cross multiply
    345,857.60x = 518,938.88 × 146,315.68
  4. Step 4: Simplify right side
    345,857.60x = 75,928,895,105.64
  5. Step 5: Solve for x
    x = 75,928,895,105.64/345,857.60
  6. Step 6: Final answer
    x = 219,538.03

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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.