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Finding the Fourth Proportional to 354,344.72, 488,986.83 and 193,202.90

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Solution

The fourth proportional to 354,344.72, 488,986.83 and 193,202.90 is: 266,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,344.72 : 488,986.83 = 193,202.90 : x
  2. Step 2: Convert to fraction form
    354,344.72/488,986.83 = 193,202.90/x
  3. Step 3: Cross multiply
    354,344.72x = 488,986.83 × 193,202.90
  4. Step 4: Simplify right side
    354,344.72x = 94,473,673,617.81
  5. Step 5: Solve for x
    x = 94,473,673,617.81/354,344.72
  6. Step 6: Final answer
    x = 266,615.16

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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.