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Finding the Fourth Proportional to 228,444.56, 315,209.75 and 147,860.90

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Solution

The fourth proportional to 228,444.56, 315,209.75 and 147,860.90 is: 204,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,444.56 : 315,209.75 = 147,860.90 : x
  2. Step 2: Convert to fraction form
    228,444.56/315,209.75 = 147,860.90/x
  3. Step 3: Cross multiply
    228,444.56x = 315,209.75 × 147,860.90
  4. Step 4: Simplify right side
    228,444.56x = 46,607,198,481.45
  5. Step 5: Solve for x
    x = 46,607,198,481.45/228,444.56
  6. Step 6: Final answer
    x = 204,019.73

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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.