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Finding the Fourth Proportional to 239,340.34, 330,274.80 and 131,904.40

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Solution

The fourth proportional to 239,340.34, 330,274.80 and 131,904.40 is: 182,019.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,340.34 : 330,274.80 = 131,904.40 : x
  2. Step 2: Convert to fraction form
    239,340.34/330,274.80 = 131,904.40/x
  3. Step 3: Cross multiply
    239,340.34x = 330,274.80 × 131,904.40
  4. Step 4: Simplify right side
    239,340.34x = 43,564,699,329.12
  5. Step 5: Solve for x
    x = 43,564,699,329.12/239,340.34
  6. Step 6: Final answer
    x = 182,019.88

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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.