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Finding the Fourth Proportional to 243,353.77, 365,043.65 and 74,989.73

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Solution

The fourth proportional to 243,353.77, 365,043.65 and 74,989.73 is: 112,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,353.77 : 365,043.65 = 74,989.73 : x
  2. Step 2: Convert to fraction form
    243,353.77/365,043.65 = 74,989.73/x
  3. Step 3: Cross multiply
    243,353.77x = 365,043.65 × 74,989.73
  4. Step 4: Simplify right side
    243,353.77x = 27,374,525,289.38
  5. Step 5: Solve for x
    x = 27,374,525,289.38/243,353.77
  6. Step 6: Final answer
    x = 112,488.60

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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.