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Finding the Fourth Proportional to 238,420.58, 329,026.20 and 130,997.58

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Solution

The fourth proportional to 238,420.58, 329,026.20 and 130,997.58 is: 180,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,420.58 : 329,026.20 = 130,997.58 : x
  2. Step 2: Convert to fraction form
    238,420.58/329,026.20 = 130,997.58/x
  3. Step 3: Cross multiply
    238,420.58x = 329,026.20 × 130,997.58
  4. Step 4: Simplify right side
    238,420.58x = 43,101,635,956.60
  5. Step 5: Solve for x
    x = 43,101,635,956.60/238,420.58
  6. Step 6: Final answer
    x = 180,779.85

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1.5x scale

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.