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Finding the Fourth Proportional to 228,808.34, 315,361.50 and 152,190.55

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Solution

The fourth proportional to 228,808.34, 315,361.50 and 152,190.55 is: 209,760.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,808.34 : 315,361.50 = 152,190.55 : x
  2. Step 2: Convert to fraction form
    228,808.34/315,361.50 = 152,190.55/x
  3. Step 3: Cross multiply
    228,808.34x = 315,361.50 × 152,190.55
  4. Step 4: Simplify right side
    228,808.34x = 47,995,039,039.48
  5. Step 5: Solve for x
    x = 47,995,039,039.48/228,808.34
  6. Step 6: Final answer
    x = 209,760.88

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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.