Home / 239,426.64-330,420.96-137,451.36

Finding the Fourth Proportional to 239,426.64, 330,420.96 and 137,451.36

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Solution

The fourth proportional to 239,426.64, 330,420.96 and 137,451.36 is: 189,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,426.64 : 330,420.96 = 137,451.36 : x
  2. Step 2: Convert to fraction form
    239,426.64/330,420.96 = 137,451.36/x
  3. Step 3: Cross multiply
    239,426.64x = 330,420.96 × 137,451.36
  4. Step 4: Simplify right side
    239,426.64x = 45,416,810,324.51
  5. Step 5: Solve for x
    x = 45,416,810,324.51/239,426.64
  6. Step 6: Final answer
    x = 189,689.88

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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.