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Finding the Fourth Proportional to 400,879.88, 553,223.16 and 228,794.39

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Solution

The fourth proportional to 400,879.88, 553,223.16 and 228,794.39 is: 315,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,879.88 : 553,223.16 = 228,794.39 : x
  2. Step 2: Convert to fraction form
    400,879.88/553,223.16 = 228,794.39/x
  3. Step 3: Cross multiply
    400,879.88x = 553,223.16 × 228,794.39
  4. Step 4: Simplify right side
    400,879.88x = 126,574,354,200.86
  5. Step 5: Solve for x
    x = 126,574,354,200.86/400,879.88
  6. Step 6: Final answer
    x = 315,741.35

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1.5x scale

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.