Home / 239,231.90-330,140.34-130,335.70

Finding the Fourth Proportional to 239,231.90, 330,140.34 and 130,335.70

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Solution

The fourth proportional to 239,231.90, 330,140.34 and 130,335.70 is: 179,863.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,231.90 : 330,140.34 = 130,335.70 : x
  2. Step 2: Convert to fraction form
    239,231.90/330,140.34 = 130,335.70/x
  3. Step 3: Cross multiply
    239,231.90x = 330,140.34 × 130,335.70
  4. Step 4: Simplify right side
    239,231.90x = 43,029,072,312.14
  5. Step 5: Solve for x
    x = 43,029,072,312.14/239,231.90
  6. Step 6: Final answer
    x = 179,863.44

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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.