Home / 220,671.40-331,352.70-127,359.40

Finding the Fourth Proportional to 220,671.40, 331,352.70 and 127,359.40

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Solution

The fourth proportional to 220,671.40, 331,352.70 and 127,359.40 is: 191,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,671.40 : 331,352.70 = 127,359.40 : x
  2. Step 2: Convert to fraction form
    220,671.40/331,352.70 = 127,359.40/x
  3. Step 3: Cross multiply
    220,671.40x = 331,352.70 × 127,359.40
  4. Step 4: Simplify right side
    220,671.40x = 42,200,881,060.38
  5. Step 5: Solve for x
    x = 42,200,881,060.38/220,671.40
  6. Step 6: Final answer
    x = 191,238.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.