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Finding the Fourth Proportional to 239,477.27, 330,500.81 and 137,516.09

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Solution

The fourth proportional to 239,477.27, 330,500.81 and 137,516.09 is: 189,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,477.27 : 330,500.81 = 137,516.09 : x
  2. Step 2: Convert to fraction form
    239,477.27/330,500.81 = 137,516.09/x
  3. Step 3: Cross multiply
    239,477.27x = 330,500.81 × 137,516.09
  4. Step 4: Simplify right side
    239,477.27x = 45,449,178,445.45
  5. Step 5: Solve for x
    x = 45,449,178,445.45/239,477.27
  6. Step 6: Final answer
    x = 189,784.94

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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.