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Finding the Fourth Proportional to 268,168.48, 370,244.40 and 239,438.56

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Solution

The fourth proportional to 268,168.48, 370,244.40 and 239,438.56 is: 330,578.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,168.48 : 370,244.40 = 239,438.56 : x
  2. Step 2: Convert to fraction form
    268,168.48/370,244.40 = 239,438.56/x
  3. Step 3: Cross multiply
    268,168.48x = 370,244.40 × 239,438.56
  4. Step 4: Simplify right side
    268,168.48x = 88,650,785,984.06
  5. Step 5: Solve for x
    x = 88,650,785,984.06/268,168.48
  6. Step 6: Final answer
    x = 330,578.69

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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.