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Finding the Fourth Proportional to 239,777.43, 330,900.87 and 130,888.22

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Solution

The fourth proportional to 239,777.43, 330,900.87 and 130,888.22 is: 180,630.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,777.43 : 330,900.87 = 130,888.22 : x
  2. Step 2: Convert to fraction form
    239,777.43/330,900.87 = 130,888.22/x
  3. Step 3: Cross multiply
    239,777.43x = 330,900.87 × 130,888.22
  4. Step 4: Simplify right side
    239,777.43x = 43,311,025,216.31
  5. Step 5: Solve for x
    x = 43,311,025,216.31/239,777.43
  6. Step 6: Final answer
    x = 180,630.12

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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.