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Finding the Fourth Proportional to 262,259.28, 393,378.42 and 75,270.72

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Solution

The fourth proportional to 262,259.28, 393,378.42 and 75,270.72 is: 112,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,259.28 : 393,378.42 = 75,270.72 : x
  2. Step 2: Convert to fraction form
    262,259.28/393,378.42 = 75,270.72/x
  3. Step 3: Cross multiply
    262,259.28x = 393,378.42 × 75,270.72
  4. Step 4: Simplify right side
    262,259.28x = 29,609,876,905.86
  5. Step 5: Solve for x
    x = 29,609,876,905.86/262,259.28
  6. Step 6: Final answer
    x = 112,903.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.