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Finding the Fourth Proportional to 238,291.01, 328,915.31 and 153,408

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Solution

The fourth proportional to 238,291.01, 328,915.31 and 153,408 is: 211,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,291.01 : 328,915.31 = 153,408 : x
  2. Step 2: Convert to fraction form
    238,291.01/328,915.31 = 153,408/x
  3. Step 3: Cross multiply
    238,291.01x = 328,915.31 × 153,408
  4. Step 4: Simplify right side
    238,291.01x = 50,458,239,109.44
  5. Step 5: Solve for x
    x = 50,458,239,109.44/238,291.01
  6. Step 6: Final answer
    x = 211,750.50

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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.