Home / 400,816.50-553,115.85-228,731.34

Finding the Fourth Proportional to 400,816.50, 553,115.85 and 228,731.34

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Solution

The fourth proportional to 400,816.50, 553,115.85 and 228,731.34 is: 315,643.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,816.50 : 553,115.85 = 228,731.34 : x
  2. Step 2: Convert to fraction form
    400,816.50/553,115.85 = 228,731.34/x
  3. Step 3: Cross multiply
    400,816.50x = 553,115.85 × 228,731.34
  4. Step 4: Simplify right side
    400,816.50x = 126,514,929,545.74
  5. Step 5: Solve for x
    x = 126,514,929,545.74/400,816.50
  6. Step 6: Final answer
    x = 315,643.02

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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.