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Finding the Fourth Proportional to 228,899.43, 315,885.03 and 126,929.19

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Solution

The fourth proportional to 228,899.43, 315,885.03 and 126,929.19 is: 175,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,899.43 : 315,885.03 = 126,929.19 : x
  2. Step 2: Convert to fraction form
    228,899.43/315,885.03 = 126,929.19/x
  3. Step 3: Cross multiply
    228,899.43x = 315,885.03 × 126,929.19
  4. Step 4: Simplify right side
    228,899.43x = 40,095,030,991.03
  5. Step 5: Solve for x
    x = 40,095,030,991.03/228,899.43
  6. Step 6: Final answer
    x = 175,164.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.