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Finding the Fourth Proportional to 230,894.55, 318,707.06 and 135,439.83

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Solution

The fourth proportional to 230,894.55, 318,707.06 and 135,439.83 is: 186,949.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,894.55 : 318,707.06 = 135,439.83 : x
  2. Step 2: Convert to fraction form
    230,894.55/318,707.06 = 135,439.83/x
  3. Step 3: Cross multiply
    230,894.55x = 318,707.06 × 135,439.83
  4. Step 4: Simplify right side
    230,894.55x = 43,165,629,349.00
  5. Step 5: Solve for x
    x = 43,165,629,349.00/230,894.55
  6. Step 6: Final answer
    x = 186,949.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.