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Finding the Fourth Proportional to 628,695.81, 943,034.54 and 155,381.22

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Solution

The fourth proportional to 628,695.81, 943,034.54 and 155,381.22 is: 233,069.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,695.81 : 943,034.54 = 155,381.22 : x
  2. Step 2: Convert to fraction form
    628,695.81/943,034.54 = 155,381.22/x
  3. Step 3: Cross multiply
    628,695.81x = 943,034.54 × 155,381.22
  4. Step 4: Simplify right side
    628,695.81x = 146,529,856,550.43
  5. Step 5: Solve for x
    x = 146,529,856,550.43/628,695.81
  6. Step 6: Final answer
    x = 233,069.56

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Similar ratio
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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.