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Finding the Fourth Proportional to 286,445.86, 395,251.41 and 165,563.86

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Solution

The fourth proportional to 286,445.86, 395,251.41 and 165,563.86 is: 228,452.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,445.86 : 395,251.41 = 165,563.86 : x
  2. Step 2: Convert to fraction form
    286,445.86/395,251.41 = 165,563.86/x
  3. Step 3: Cross multiply
    286,445.86x = 395,251.41 × 165,563.86
  4. Step 4: Simplify right side
    286,445.86x = 65,439,349,110.04
  5. Step 5: Solve for x
    x = 65,439,349,110.04/286,445.86
  6. Step 6: Final answer
    x = 228,452.77

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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.