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Finding the Fourth Proportional to 179,628.60, 269,661.60 and 90,836.40

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Solution

The fourth proportional to 179,628.60, 269,661.60 and 90,836.40 is: 136,365.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,628.60 : 269,661.60 = 90,836.40 : x
  2. Step 2: Convert to fraction form
    179,628.60/269,661.60 = 90,836.40/x
  3. Step 3: Cross multiply
    179,628.60x = 269,661.60 × 90,836.40
  4. Step 4: Simplify right side
    179,628.60x = 24,495,088,962.24
  5. Step 5: Solve for x
    x = 24,495,088,962.24/179,628.60
  6. Step 6: Final answer
    x = 136,365.19

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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.