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Finding the Fourth Proportional to 354,145.64, 488,706.72 and 192,997.23

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Solution

The fourth proportional to 354,145.64, 488,706.72 and 192,997.23 is: 266,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,145.64 : 488,706.72 = 192,997.23 : x
  2. Step 2: Convert to fraction form
    354,145.64/488,706.72 = 192,997.23/x
  3. Step 3: Cross multiply
    354,145.64x = 488,706.72 × 192,997.23
  4. Step 4: Simplify right side
    354,145.64x = 94,319,043,242.39
  5. Step 5: Solve for x
    x = 94,319,043,242.39/354,145.64
  6. Step 6: Final answer
    x = 266,328.40

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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.