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Finding the Fourth Proportional to 226,362.60, 312,290.80 and 145,837.08

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Solution

The fourth proportional to 226,362.60, 312,290.80 and 145,837.08 is: 201,197.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,362.60 : 312,290.80 = 145,837.08 : x
  2. Step 2: Convert to fraction form
    226,362.60/312,290.80 = 145,837.08/x
  3. Step 3: Cross multiply
    226,362.60x = 312,290.80 × 145,837.08
  4. Step 4: Simplify right side
    226,362.60x = 45,543,578,018.27
  5. Step 5: Solve for x
    x = 45,543,578,018.27/226,362.60
  6. Step 6: Final answer
    x = 201,197.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.