Home / 401,076.50-553,415.28-228,915.86

Finding the Fourth Proportional to 401,076.50, 553,415.28 and 228,915.86

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Solution

The fourth proportional to 401,076.50, 553,415.28 and 228,915.86 is: 315,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,076.50 : 553,415.28 = 228,915.86 : x
  2. Step 2: Convert to fraction form
    401,076.50/553,415.28 = 228,915.86/x
  3. Step 3: Cross multiply
    401,076.50x = 553,415.28 × 228,915.86
  4. Step 4: Simplify right side
    401,076.50x = 126,685,531,991.26
  5. Step 5: Solve for x
    x = 126,685,531,991.26/401,076.50
  6. Step 6: Final answer
    x = 315,863.77

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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.