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Finding the Fourth Proportional to 258,384.24, 387,576.54 and 71,395.92

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Solution

The fourth proportional to 258,384.24, 387,576.54 and 71,395.92 is: 107,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,384.24 : 387,576.54 = 71,395.92 : x
  2. Step 2: Convert to fraction form
    258,384.24/387,576.54 = 71,395.92/x
  3. Step 3: Cross multiply
    258,384.24x = 387,576.54 × 71,395.92
  4. Step 4: Simplify right side
    258,384.24x = 27,671,383,643.72
  5. Step 5: Solve for x
    x = 27,671,383,643.72/258,384.24
  6. Step 6: Final answer
    x = 107,093.93

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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.