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Finding the Fourth Proportional to 234,015.87, 322,839.34 and 137,170.63

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Solution

The fourth proportional to 234,015.87, 322,839.34 and 137,170.63 is: 189,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,015.87 : 322,839.34 = 137,170.63 : x
  2. Step 2: Convert to fraction form
    234,015.87/322,839.34 = 137,170.63/x
  3. Step 3: Cross multiply
    234,015.87x = 322,839.34 × 137,170.63
  4. Step 4: Simplify right side
    234,015.87x = 44,284,075,656.58
  5. Step 5: Solve for x
    x = 44,284,075,656.58/234,015.87
  6. Step 6: Final answer
    x = 189,235.35

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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.