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Finding the Fourth Proportional to 243,743.60, 365,615.40 and 205,252.40

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Solution

The fourth proportional to 243,743.60, 365,615.40 and 205,252.40 is: 307,878.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,743.60 : 365,615.40 = 205,252.40 : x
  2. Step 2: Convert to fraction form
    243,743.60/365,615.40 = 205,252.40/x
  3. Step 3: Cross multiply
    243,743.60x = 365,615.40 × 205,252.40
  4. Step 4: Simplify right side
    243,743.60x = 75,043,438,326.96
  5. Step 5: Solve for x
    x = 75,043,438,326.96/243,743.60
  6. Step 6: Final answer
    x = 307,878.60

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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.