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Finding the Fourth Proportional to 228,294.09, 315,018.24 and 131,529.60

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Solution

The fourth proportional to 228,294.09, 315,018.24 and 131,529.60 is: 181,494.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,294.09 : 315,018.24 = 131,529.60 : x
  2. Step 2: Convert to fraction form
    228,294.09/315,018.24 = 131,529.60/x
  3. Step 3: Cross multiply
    228,294.09x = 315,018.24 × 131,529.60
  4. Step 4: Simplify right side
    228,294.09x = 41,434,223,099.90
  5. Step 5: Solve for x
    x = 41,434,223,099.90/228,294.09
  6. Step 6: Final answer
    x = 181,494.94

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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.