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Finding the Fourth Proportional to 234,839.77, 324,080.72 and 138,017.63

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Solution

The fourth proportional to 234,839.77, 324,080.72 and 138,017.63 is: 190,465.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,839.77 : 324,080.72 = 138,017.63 : x
  2. Step 2: Convert to fraction form
    234,839.77/324,080.72 = 138,017.63/x
  3. Step 3: Cross multiply
    234,839.77x = 324,080.72 × 138,017.63
  4. Step 4: Simplify right side
    234,839.77x = 44,728,852,903.09
  5. Step 5: Solve for x
    x = 44,728,852,903.09/234,839.77
  6. Step 6: Final answer
    x = 190,465.41

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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.