Home / 238,140.48-328,664.18-137,538.48

Finding the Fourth Proportional to 238,140.48, 328,664.18 and 137,538.48

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Solution

The fourth proportional to 238,140.48, 328,664.18 and 137,538.48 is: 189,820.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,140.48 : 328,664.18 = 137,538.48 : x
  2. Step 2: Convert to fraction form
    238,140.48/328,664.18 = 137,538.48/x
  3. Step 3: Cross multiply
    238,140.48x = 328,664.18 × 137,538.48
  4. Step 4: Simplify right side
    238,140.48x = 45,203,971,747.65
  5. Step 5: Solve for x
    x = 45,203,971,747.65/238,140.48
  6. Step 6: Final answer
    x = 189,820.61

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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.