Home / 316,905.75-437,330.07-173,671.56

Finding the Fourth Proportional to 316,905.75, 437,330.07 and 173,671.56

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Solution

The fourth proportional to 316,905.75, 437,330.07 and 173,671.56 is: 239,666.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,905.75 : 437,330.07 = 173,671.56 : x
  2. Step 2: Convert to fraction form
    316,905.75/437,330.07 = 173,671.56/x
  3. Step 3: Cross multiply
    316,905.75x = 437,330.07 × 173,671.56
  4. Step 4: Simplify right side
    316,905.75x = 75,951,795,491.81
  5. Step 5: Solve for x
    x = 75,951,795,491.81/316,905.75
  6. Step 6: Final answer
    x = 239,666.83

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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.