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Finding the Fourth Proportional to 345,443.59, 518,230.99 and 120,867.85

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Solution

The fourth proportional to 345,443.59, 518,230.99 and 120,867.85 is: 181,324.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,443.59 : 518,230.99 = 120,867.85 : x
  2. Step 2: Convert to fraction form
    345,443.59/518,230.99 = 120,867.85/x
  3. Step 3: Cross multiply
    345,443.59x = 518,230.99 × 120,867.85
  4. Step 4: Simplify right side
    345,443.59x = 62,637,465,564.67
  5. Step 5: Solve for x
    x = 62,637,465,564.67/345,443.59
  6. Step 6: Final answer
    x = 181,324.73

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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.