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Finding the Fourth Proportional to 229,985.40, 344,978.10 and 173,998.20

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Solution

The fourth proportional to 229,985.40, 344,978.10 and 173,998.20 is: 260,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,985.40 : 344,978.10 = 173,998.20 : x
  2. Step 2: Convert to fraction form
    229,985.40/344,978.10 = 173,998.20/x
  3. Step 3: Cross multiply
    229,985.40x = 344,978.10 × 173,998.20
  4. Step 4: Simplify right side
    229,985.40x = 60,025,568,439.42
  5. Step 5: Solve for x
    x = 60,025,568,439.42/229,985.40
  6. Step 6: Final answer
    x = 260,997.30

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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.