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Finding the Fourth Proportional to 628,480.06, 942,722.02 and 155,165.48

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Solution

The fourth proportional to 628,480.06, 942,722.02 and 155,165.48 is: 232,748.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,480.06 : 942,722.02 = 155,165.48 : x
  2. Step 2: Convert to fraction form
    628,480.06/942,722.02 = 155,165.48/x
  3. Step 3: Cross multiply
    628,480.06x = 942,722.02 × 155,165.48
  4. Step 4: Simplify right side
    628,480.06x = 146,277,914,739.87
  5. Step 5: Solve for x
    x = 146,277,914,739.87/628,480.06
  6. Step 6: Final answer
    x = 232,748.70

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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.