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Finding the Fourth Proportional to 228,809.73, 315,407.43 and 160,635.45

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Solution

The fourth proportional to 228,809.73, 315,407.43 and 160,635.45 is: 221,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,809.73 : 315,407.43 = 160,635.45 : x
  2. Step 2: Convert to fraction form
    228,809.73/315,407.43 = 160,635.45/x
  3. Step 3: Cross multiply
    228,809.73x = 315,407.43 × 160,635.45
  4. Step 4: Simplify right side
    228,809.73x = 50,665,614,451.39
  5. Step 5: Solve for x
    x = 50,665,614,451.39/228,809.73
  6. Step 6: Final answer
    x = 221,431.21

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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.