Home / 401,077.50-553,416.66-228,916.86

Finding the Fourth Proportional to 401,077.50, 553,416.66 and 228,916.86

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Solution

The fourth proportional to 401,077.50, 553,416.66 and 228,916.86 is: 315,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,077.50 : 553,416.66 = 228,916.86 : x
  2. Step 2: Convert to fraction form
    401,077.50/553,416.66 = 228,916.86/x
  3. Step 3: Cross multiply
    401,077.50x = 553,416.66 × 228,916.86
  4. Step 4: Simplify right side
    401,077.50x = 126,686,404,078.89
  5. Step 5: Solve for x
    x = 126,686,404,078.89/401,077.50
  6. Step 6: Final answer
    x = 315,865.15

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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.