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Finding the Fourth Proportional to 239,773.57, 330,838.14 and 137,779.33

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Solution

The fourth proportional to 239,773.57, 330,838.14 and 137,779.33 is: 190,107.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,773.57 : 330,838.14 = 137,779.33 : x
  2. Step 2: Convert to fraction form
    239,773.57/330,838.14 = 137,779.33/x
  3. Step 3: Cross multiply
    239,773.57x = 330,838.14 × 137,779.33
  4. Step 4: Simplify right side
    239,773.57x = 45,582,655,751.65
  5. Step 5: Solve for x
    x = 45,582,655,751.65/239,773.57
  6. Step 6: Final answer
    x = 190,107.09

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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.