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Finding the Fourth Proportional to 202,923.40, 304,385.10 and 84,679.60

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Solution

The fourth proportional to 202,923.40, 304,385.10 and 84,679.60 is: 127,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,923.40 : 304,385.10 = 84,679.60 : x
  2. Step 2: Convert to fraction form
    202,923.40/304,385.10 = 84,679.60/x
  3. Step 3: Cross multiply
    202,923.40x = 304,385.10 × 84,679.60
  4. Step 4: Simplify right side
    202,923.40x = 25,775,208,513.96
  5. Step 5: Solve for x
    x = 25,775,208,513.96/202,923.40
  6. Step 6: Final answer
    x = 127,019.40

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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.