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Finding the Fourth Proportional to 239,809.86, 330,933.33 and 137,834.10

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Solution

The fourth proportional to 239,809.86, 330,933.33 and 137,834.10 is: 190,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,809.86 : 330,933.33 = 137,834.10 : x
  2. Step 2: Convert to fraction form
    239,809.86/330,933.33 = 137,834.10/x
  3. Step 3: Cross multiply
    239,809.86x = 330,933.33 × 137,834.10
  4. Step 4: Simplify right side
    239,809.86x = 45,613,897,700.55
  5. Step 5: Solve for x
    x = 45,613,897,700.55/239,809.86
  6. Step 6: Final answer
    x = 190,208.60

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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.