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Finding the Fourth Proportional to 238,421.58, 329,027.58 and 130,998.58

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Solution

The fourth proportional to 238,421.58, 329,027.58 and 130,998.58 is: 180,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,421.58 : 329,027.58 = 130,998.58 : x
  2. Step 2: Convert to fraction form
    238,421.58/329,027.58 = 130,998.58/x
  3. Step 3: Cross multiply
    238,421.58x = 329,027.58 × 130,998.58
  4. Step 4: Simplify right side
    238,421.58x = 43,102,145,760.84
  5. Step 5: Solve for x
    x = 43,102,145,760.84/238,421.58
  6. Step 6: Final answer
    x = 180,781.23

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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.