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Finding the Fourth Proportional to 316,270.85, 436,464.12 and 173,027.57

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Solution

The fourth proportional to 316,270.85, 436,464.12 and 173,027.57 is: 238,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,270.85 : 436,464.12 = 173,027.57 : x
  2. Step 2: Convert to fraction form
    316,270.85/436,464.12 = 173,027.57/x
  3. Step 3: Cross multiply
    316,270.85x = 436,464.12 × 173,027.57
  4. Step 4: Simplify right side
    316,270.85x = 75,520,323,893.47
  5. Step 5: Solve for x
    x = 75,520,323,893.47/316,270.85
  6. Step 6: Final answer
    x = 238,783.70

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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.