Home / 239,243.47-330,153.37-137,284.98

Finding the Fourth Proportional to 239,243.47, 330,153.37 and 137,284.98

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Solution

The fourth proportional to 239,243.47, 330,153.37 and 137,284.98 is: 189,451.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,243.47 : 330,153.37 = 137,284.98 : x
  2. Step 2: Convert to fraction form
    239,243.47/330,153.37 = 137,284.98/x
  3. Step 3: Cross multiply
    239,243.47x = 330,153.37 × 137,284.98
  4. Step 4: Simplify right side
    239,243.47x = 45,325,097,216.10
  5. Step 5: Solve for x
    x = 45,325,097,216.10/239,243.47
  6. Step 6: Final answer
    x = 189,451.76

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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.