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Finding the Fourth Proportional to 194,426.70, 291,640.05 and 115,500.30

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Solution

The fourth proportional to 194,426.70, 291,640.05 and 115,500.30 is: 173,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,426.70 : 291,640.05 = 115,500.30 : x
  2. Step 2: Convert to fraction form
    194,426.70/291,640.05 = 115,500.30/x
  3. Step 3: Cross multiply
    194,426.70x = 291,640.05 × 115,500.30
  4. Step 4: Simplify right side
    194,426.70x = 33,684,513,267.02
  5. Step 5: Solve for x
    x = 33,684,513,267.02/194,426.70
  6. Step 6: Final answer
    x = 173,250.45

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