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Finding the Fourth Proportional to 243,112.60, 364,723.04 and 74,647.58

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Solution

The fourth proportional to 243,112.60, 364,723.04 and 74,647.58 is: 111,988.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,112.60 : 364,723.04 = 74,647.58 : x
  2. Step 2: Convert to fraction form
    243,112.60/364,723.04 = 74,647.58/x
  3. Step 3: Cross multiply
    243,112.60x = 364,723.04 × 74,647.58
  4. Step 4: Simplify right side
    243,112.60x = 27,225,692,844.81
  5. Step 5: Solve for x
    x = 27,225,692,844.81/243,112.60
  6. Step 6: Final answer
    x = 111,988.00

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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.