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Finding the Fourth Proportional to 242,616.40, 363,924.60 and 84,828.40

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Solution

The fourth proportional to 242,616.40, 363,924.60 and 84,828.40 is: 127,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,616.40 : 363,924.60 = 84,828.40 : x
  2. Step 2: Convert to fraction form
    242,616.40/363,924.60 = 84,828.40/x
  3. Step 3: Cross multiply
    242,616.40x = 363,924.60 × 84,828.40
  4. Step 4: Simplify right side
    242,616.40x = 30,871,141,538.64
  5. Step 5: Solve for x
    x = 30,871,141,538.64/242,616.40
  6. Step 6: Final answer
    x = 127,242.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.