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Finding the Fourth Proportional to 316,682.35, 437,005.40 and 173,439.32

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Solution

The fourth proportional to 316,682.35, 437,005.40 and 173,439.32 is: 239,337.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,682.35 : 437,005.40 = 173,439.32 : x
  2. Step 2: Convert to fraction form
    316,682.35/437,005.40 = 173,439.32/x
  3. Step 3: Cross multiply
    316,682.35x = 437,005.40 × 173,439.32
  4. Step 4: Simplify right side
    316,682.35x = 75,793,919,412.33
  5. Step 5: Solve for x
    x = 75,793,919,412.33/316,682.35
  6. Step 6: Final answer
    x = 239,337.37

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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.