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Finding the Fourth Proportional to 242,665.98, 363,999.93 and 74,185.68

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Solution

The fourth proportional to 242,665.98, 363,999.93 and 74,185.68 is: 111,278.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,665.98 : 363,999.93 = 74,185.68 : x
  2. Step 2: Convert to fraction form
    242,665.98/363,999.93 = 74,185.68/x
  3. Step 3: Cross multiply
    242,665.98x = 363,999.93 × 74,185.68
  4. Step 4: Simplify right side
    242,665.98x = 27,003,582,327.00
  5. Step 5: Solve for x
    x = 27,003,582,327.00/242,665.98
  6. Step 6: Final answer
    x = 111,278.81

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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.