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Finding the Fourth Proportional to 239,226.39, 330,119.64 and 137,230.77

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Solution

The fourth proportional to 239,226.39, 330,119.64 and 137,230.77 is: 189,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,226.39 : 330,119.64 = 137,230.77 : x
  2. Step 2: Convert to fraction form
    239,226.39/330,119.64 = 137,230.77/x
  3. Step 3: Cross multiply
    239,226.39x = 330,119.64 × 137,230.77
  4. Step 4: Simplify right side
    239,226.39x = 45,302,572,389.32
  5. Step 5: Solve for x
    x = 45,302,572,389.32/239,226.39
  6. Step 6: Final answer
    x = 189,371.13

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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.