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Finding the Fourth Proportional to 235,749.32, 325,341.08 and 145,157.56

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Solution

The fourth proportional to 235,749.32, 325,341.08 and 145,157.56 is: 200,321.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,749.32 : 325,341.08 = 145,157.56 : x
  2. Step 2: Convert to fraction form
    235,749.32/325,341.08 = 145,157.56/x
  3. Step 3: Cross multiply
    235,749.32x = 325,341.08 × 145,157.56
  4. Step 4: Simplify right side
    235,749.32x = 47,225,717,340.56
  5. Step 5: Solve for x
    x = 47,225,717,340.56/235,749.32
  6. Step 6: Final answer
    x = 200,321.75

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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.