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Finding the Fourth Proportional to 354,027.90, 530,968.02 and 129,494.10

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Solution

The fourth proportional to 354,027.90, 530,968.02 and 129,494.10 is: 194,214.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,027.90 : 530,968.02 = 129,494.10 : x
  2. Step 2: Convert to fraction form
    354,027.90/530,968.02 = 129,494.10/x
  3. Step 3: Cross multiply
    354,027.90x = 530,968.02 × 129,494.10
  4. Step 4: Simplify right side
    354,027.90x = 68,757,225,878.68
  5. Step 5: Solve for x
    x = 68,757,225,878.68/354,027.90
  6. Step 6: Final answer
    x = 194,214.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.