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Finding the Fourth Proportional to 250,069.36, 345,096.30 and 136,899.40

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Solution

The fourth proportional to 250,069.36, 345,096.30 and 136,899.40 is: 188,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,069.36 : 345,096.30 = 136,899.40 : x
  2. Step 2: Convert to fraction form
    250,069.36/345,096.30 = 136,899.40/x
  3. Step 3: Cross multiply
    250,069.36x = 345,096.30 × 136,899.40
  4. Step 4: Simplify right side
    250,069.36x = 47,243,476,412.22
  5. Step 5: Solve for x
    x = 47,243,476,412.22/250,069.36
  6. Step 6: Final answer
    x = 188,921.49

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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.