Home / 238,109.54-328,580.62-130,679.78

Finding the Fourth Proportional to 238,109.54, 328,580.62 and 130,679.78

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Solution

The fourth proportional to 238,109.54, 328,580.62 and 130,679.78 is: 180,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,109.54 : 328,580.62 = 130,679.78 : x
  2. Step 2: Convert to fraction form
    238,109.54/328,580.62 = 130,679.78/x
  3. Step 3: Cross multiply
    238,109.54x = 328,580.62 × 130,679.78
  4. Step 4: Simplify right side
    238,109.54x = 42,938,841,164.26
  5. Step 5: Solve for x
    x = 42,938,841,164.26/238,109.54
  6. Step 6: Final answer
    x = 180,332.30

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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.