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Finding the Fourth Proportional to 228,505.57, 315,333.83 and 126,528.84

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Solution

The fourth proportional to 228,505.57, 315,333.83 and 126,528.84 is: 174,607.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,505.57 : 315,333.83 = 126,528.84 : x
  2. Step 2: Convert to fraction form
    228,505.57/315,333.83 = 126,528.84/x
  3. Step 3: Cross multiply
    228,505.57x = 315,333.83 × 126,528.84
  4. Step 4: Simplify right side
    228,505.57x = 39,898,824,214.13
  5. Step 5: Solve for x
    x = 39,898,824,214.13/228,505.57
  6. Step 6: Final answer
    x = 174,607.66

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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.