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Finding the Fourth Proportional to 228,763.28, 343,190.79 and 79,009.07

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Solution

The fourth proportional to 228,763.28, 343,190.79 and 79,009.07 is: 118,529.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,763.28 : 343,190.79 = 79,009.07 : x
  2. Step 2: Convert to fraction form
    228,763.28/343,190.79 = 79,009.07/x
  3. Step 3: Cross multiply
    228,763.28x = 343,190.79 × 79,009.07
  4. Step 4: Simplify right side
    228,763.28x = 27,115,183,434.51
  5. Step 5: Solve for x
    x = 27,115,183,434.51/228,763.28
  6. Step 6: Final answer
    x = 118,529.44

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1.5x scale

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.