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Finding the Fourth Proportional to 344,647.80, 516,987.90 and 107,998.20

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Solution

The fourth proportional to 344,647.80, 516,987.90 and 107,998.20 is: 162,002.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,647.80 : 516,987.90 = 107,998.20 : x
  2. Step 2: Convert to fraction form
    344,647.80/516,987.90 = 107,998.20/x
  3. Step 3: Cross multiply
    344,647.80x = 516,987.90 × 107,998.20
  4. Step 4: Simplify right side
    344,647.80x = 55,833,762,621.78
  5. Step 5: Solve for x
    x = 55,833,762,621.78/344,647.80
  6. Step 6: Final answer
    x = 162,002.38

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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.