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Finding the Fourth Proportional to 283,370.56, 421,710.56 and 273,921.28

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Solution

The fourth proportional to 283,370.56, 421,710.56 and 273,921.28 is: 407,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,370.56 : 421,710.56 = 273,921.28 : x
  2. Step 2: Convert to fraction form
    283,370.56/421,710.56 = 273,921.28/x
  3. Step 3: Cross multiply
    283,370.56x = 421,710.56 × 273,921.28
  4. Step 4: Simplify right side
    283,370.56x = 115,515,496,384.72
  5. Step 5: Solve for x
    x = 115,515,496,384.72/283,370.56
  6. Step 6: Final answer
    x = 407,648.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.