Home / 239,326.38-330,271.02-130,431.60

Finding the Fourth Proportional to 239,326.38, 330,271.02 and 130,431.60

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Solution

The fourth proportional to 239,326.38, 330,271.02 and 130,431.60 is: 179,995.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,326.38 : 330,271.02 = 130,431.60 : x
  2. Step 2: Convert to fraction form
    239,326.38/330,271.02 = 130,431.60/x
  3. Step 3: Cross multiply
    239,326.38x = 330,271.02 × 130,431.60
  4. Step 4: Simplify right side
    239,326.38x = 43,077,777,572.23
  5. Step 5: Solve for x
    x = 43,077,777,572.23/239,326.38
  6. Step 6: Final answer
    x = 179,995.94

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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.