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Finding the Fourth Proportional to 345,335.70, 518,003.55 and 252,023.70

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Solution

The fourth proportional to 345,335.70, 518,003.55 and 252,023.70 is: 378,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,335.70 : 518,003.55 = 252,023.70 : x
  2. Step 2: Convert to fraction form
    345,335.70/518,003.55 = 252,023.70/x
  3. Step 3: Cross multiply
    345,335.70x = 518,003.55 × 252,023.70
  4. Step 4: Simplify right side
    345,335.70x = 130,549,171,284.14
  5. Step 5: Solve for x
    x = 130,549,171,284.14/345,335.70
  6. Step 6: Final answer
    x = 378,035.55

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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.