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Finding the Fourth Proportional to 219,331.88, 328,930.84 and 92,969.76

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Solution

The fourth proportional to 219,331.88, 328,930.84 and 92,969.76 is: 139,426.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,331.88 : 328,930.84 = 92,969.76 : x
  2. Step 2: Convert to fraction form
    219,331.88/328,930.84 = 92,969.76/x
  3. Step 3: Cross multiply
    219,331.88x = 328,930.84 × 92,969.76
  4. Step 4: Simplify right side
    219,331.88x = 30,580,621,251.40
  5. Step 5: Solve for x
    x = 30,580,621,251.40/219,331.88
  6. Step 6: Final answer
    x = 139,426.25

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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.