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Finding the Fourth Proportional to 235,742.67, 325,331.90 and 145,150.88

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Solution

The fourth proportional to 235,742.67, 325,331.90 and 145,150.88 is: 200,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,742.67 : 325,331.90 = 145,150.88 : x
  2. Step 2: Convert to fraction form
    235,742.67/325,331.90 = 145,150.88/x
  3. Step 3: Cross multiply
    235,742.67x = 325,331.90 × 145,150.88
  4. Step 4: Simplify right side
    235,742.67x = 47,222,212,753.28
  5. Step 5: Solve for x
    x = 47,222,212,753.28/235,742.67
  6. Step 6: Final answer
    x = 200,312.54

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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.