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Finding the Fourth Proportional to 354,209.12, 488,805.42 and 193,064.18

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Solution

The fourth proportional to 354,209.12, 488,805.42 and 193,064.18 is: 266,426.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,209.12 : 488,805.42 = 193,064.18 : x
  2. Step 2: Convert to fraction form
    354,209.12/488,805.42 = 193,064.18/x
  3. Step 3: Cross multiply
    354,209.12x = 488,805.42 × 193,064.18
  4. Step 4: Simplify right side
    354,209.12x = 94,370,817,591.86
  5. Step 5: Solve for x
    x = 94,370,817,591.86/354,209.12
  6. Step 6: Final answer
    x = 266,426.84

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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.