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Finding the Fourth Proportional to 230,608.40, 346,058.40 and 135,838.40

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Solution

The fourth proportional to 230,608.40, 346,058.40 and 135,838.40 is: 203,843.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,608.40 : 346,058.40 = 135,838.40 : x
  2. Step 2: Convert to fraction form
    230,608.40/346,058.40 = 135,838.40/x
  3. Step 3: Cross multiply
    230,608.40x = 346,058.40 × 135,838.40
  4. Step 4: Simplify right side
    230,608.40x = 47,008,019,362.56
  5. Step 5: Solve for x
    x = 47,008,019,362.56/230,608.40
  6. Step 6: Final answer
    x = 203,843.48

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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.