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Finding the Fourth Proportional to 245,881.60, 368,822.40 and 79,669.60

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Solution

The fourth proportional to 245,881.60, 368,822.40 and 79,669.60 is: 119,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,881.60 : 368,822.40 = 79,669.60 : x
  2. Step 2: Convert to fraction form
    245,881.60/368,822.40 = 79,669.60/x
  3. Step 3: Cross multiply
    245,881.60x = 368,822.40 × 79,669.60
  4. Step 4: Simplify right side
    245,881.60x = 29,383,933,079.04
  5. Step 5: Solve for x
    x = 29,383,933,079.04/245,881.60
  6. Step 6: Final answer
    x = 119,504.40

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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.