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Finding the Fourth Proportional to 235,107.34, 324,454.56 and 138,318.01

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Solution

The fourth proportional to 235,107.34, 324,454.56 and 138,318.01 is: 190,882.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,107.34 : 324,454.56 = 138,318.01 : x
  2. Step 2: Convert to fraction form
    235,107.34/324,454.56 = 138,318.01/x
  3. Step 3: Cross multiply
    235,107.34x = 324,454.56 × 138,318.01
  4. Step 4: Simplify right side
    235,107.34x = 44,877,909,074.63
  5. Step 5: Solve for x
    x = 44,877,909,074.63/235,107.34
  6. Step 6: Final answer
    x = 190,882.64

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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.