Home / 238,134.12-328,601.16-142,638.36

Finding the Fourth Proportional to 238,134.12, 328,601.16 and 142,638.36

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Solution

The fourth proportional to 238,134.12, 328,601.16 and 142,638.36 is: 196,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,134.12 : 328,601.16 = 142,638.36 : x
  2. Step 2: Convert to fraction form
    238,134.12/328,601.16 = 142,638.36/x
  3. Step 3: Cross multiply
    238,134.12x = 328,601.16 × 142,638.36
  4. Step 4: Simplify right side
    238,134.12x = 46,871,130,556.50
  5. Step 5: Solve for x
    x = 46,871,130,556.50/238,134.12
  6. Step 6: Final answer
    x = 196,826.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.