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Finding the Fourth Proportional to 243,539.60, 365,309.40 and 205,048.40

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Solution

The fourth proportional to 243,539.60, 365,309.40 and 205,048.40 is: 307,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,539.60 : 365,309.40 = 205,048.40 : x
  2. Step 2: Convert to fraction form
    243,539.60/365,309.40 = 205,048.40/x
  3. Step 3: Cross multiply
    243,539.60x = 365,309.40 × 205,048.40
  4. Step 4: Simplify right side
    243,539.60x = 74,906,107,974.96
  5. Step 5: Solve for x
    x = 74,906,107,974.96/243,539.60
  6. Step 6: Final answer
    x = 307,572.60

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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.