Home / 239,380-330,345.26-131,947.72

Finding the Fourth Proportional to 239,380, 330,345.26 and 131,947.72

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Solution

The fourth proportional to 239,380, 330,345.26 and 131,947.72 is: 182,088.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,380 : 330,345.26 = 131,947.72 : x
  2. Step 2: Convert to fraction form
    239,380/330,345.26 = 131,947.72/x
  3. Step 3: Cross multiply
    239,380x = 330,345.26 × 131,947.72
  4. Step 4: Simplify right side
    239,380x = 43,588,303,869.81
  5. Step 5: Solve for x
    x = 43,588,303,869.81/239,380
  6. Step 6: Final answer
    x = 182,088.33

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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.