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Finding the Fourth Proportional to 239,297.58, 330,226.40 and 130,402.87

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Solution

The fourth proportional to 239,297.58, 330,226.40 and 130,402.87 is: 179,953.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,297.58 : 330,226.40 = 130,402.87 : x
  2. Step 2: Convert to fraction form
    239,297.58/330,226.40 = 130,402.87/x
  3. Step 3: Cross multiply
    239,297.58x = 330,226.40 × 130,402.87
  4. Step 4: Simplify right side
    239,297.58x = 43,062,469,810.21
  5. Step 5: Solve for x
    x = 43,062,469,810.21/239,297.58
  6. Step 6: Final answer
    x = 179,953.64

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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.