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Finding the Fourth Proportional to 239,498.80, 330,530.46 and 137,537.62

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Solution

The fourth proportional to 239,498.80, 330,530.46 and 137,537.62 is: 189,814.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,498.80 : 330,530.46 = 137,537.62 : x
  2. Step 2: Convert to fraction form
    239,498.80/330,530.46 = 137,537.62/x
  3. Step 3: Cross multiply
    239,498.80x = 330,530.46 × 137,537.62
  4. Step 4: Simplify right side
    239,498.80x = 45,460,372,805.91
  5. Step 5: Solve for x
    x = 45,460,372,805.91/239,498.80
  6. Step 6: Final answer
    x = 189,814.62

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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.