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Finding the Fourth Proportional to 228,322.50, 315,073.89 and 126,346.05

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Solution

The fourth proportional to 228,322.50, 315,073.89 and 126,346.05 is: 174,351.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,322.50 : 315,073.89 = 126,346.05 : x
  2. Step 2: Convert to fraction form
    228,322.50/315,073.89 = 126,346.05/x
  3. Step 3: Cross multiply
    228,322.50x = 315,073.89 × 126,346.05
  4. Step 4: Simplify right side
    228,322.50x = 39,808,341,459.63
  5. Step 5: Solve for x
    x = 39,808,341,459.63/228,322.50
  6. Step 6: Final answer
    x = 174,351.37

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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.