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Finding the Fourth Proportional to 316,903.97, 437,327.78 and 173,664.33

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Solution

The fourth proportional to 316,903.97, 437,327.78 and 173,664.33 is: 239,656.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,903.97 : 437,327.78 = 173,664.33 : x
  2. Step 2: Convert to fraction form
    316,903.97/437,327.78 = 173,664.33/x
  3. Step 3: Cross multiply
    316,903.97x = 437,327.78 × 173,664.33
  4. Step 4: Simplify right side
    316,903.97x = 75,948,235,035.77
  5. Step 5: Solve for x
    x = 75,948,235,035.77/316,903.97
  6. Step 6: Final answer
    x = 239,656.94

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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.