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Finding the Fourth Proportional to 243,606.80, 365,280.60 and 103,206.80

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Solution

The fourth proportional to 243,606.80, 365,280.60 and 103,206.80 is: 154,755.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,606.80 : 365,280.60 = 103,206.80 : x
  2. Step 2: Convert to fraction form
    243,606.80/365,280.60 = 103,206.80/x
  3. Step 3: Cross multiply
    243,606.80x = 365,280.60 × 103,206.80
  4. Step 4: Simplify right side
    243,606.80x = 37,699,441,828.08
  5. Step 5: Solve for x
    x = 37,699,441,828.08/243,606.80
  6. Step 6: Final answer
    x = 154,755.29

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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.