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Finding the Fourth Proportional to 345,459.52, 518,189.28 and 134,949.84

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Solution

The fourth proportional to 345,459.52, 518,189.28 and 134,949.84 is: 202,424.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,459.52 : 518,189.28 = 134,949.84 : x
  2. Step 2: Convert to fraction form
    345,459.52/518,189.28 = 134,949.84/x
  3. Step 3: Cross multiply
    345,459.52x = 518,189.28 × 134,949.84
  4. Step 4: Simplify right side
    345,459.52x = 69,929,560,425.72
  5. Step 5: Solve for x
    x = 69,929,560,425.72/345,459.52
  6. Step 6: Final answer
    x = 202,424.76

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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.