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Finding the Fourth Proportional to 243,806.40, 365,709.60 and 155,451.60

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Solution

The fourth proportional to 243,806.40, 365,709.60 and 155,451.60 is: 233,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,806.40 : 365,709.60 = 155,451.60 : x
  2. Step 2: Convert to fraction form
    243,806.40/365,709.60 = 155,451.60/x
  3. Step 3: Cross multiply
    243,806.40x = 365,709.60 × 155,451.60
  4. Step 4: Simplify right side
    243,806.40x = 56,850,142,455.36
  5. Step 5: Solve for x
    x = 56,850,142,455.36/243,806.40
  6. Step 6: Final answer
    x = 233,177.40

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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.