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Finding the Fourth Proportional to 354,337.55, 488,988.03 and 193,195.28

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Solution

The fourth proportional to 354,337.55, 488,988.03 and 193,195.28 is: 266,610.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,337.55 : 488,988.03 = 193,195.28 : x
  2. Step 2: Convert to fraction form
    354,337.55/488,988.03 = 193,195.28/x
  3. Step 3: Cross multiply
    354,337.55x = 488,988.03 × 193,195.28
  4. Step 4: Simplify right side
    354,337.55x = 94,470,179,372.50
  5. Step 5: Solve for x
    x = 94,470,179,372.50/354,337.55
  6. Step 6: Final answer
    x = 266,610.69

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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.