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Finding the Fourth Proportional to 354,245.59, 488,834.48 and 199,220.05

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Solution

The fourth proportional to 354,245.59, 488,834.48 and 199,220.05 is: 274,909.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,245.59 : 488,834.48 = 199,220.05 : x
  2. Step 2: Convert to fraction form
    354,245.59/488,834.48 = 199,220.05/x
  3. Step 3: Cross multiply
    354,245.59x = 488,834.48 × 199,220.05
  4. Step 4: Simplify right side
    354,245.59x = 97,385,629,547.32
  5. Step 5: Solve for x
    x = 97,385,629,547.32/354,245.59
  6. Step 6: Final answer
    x = 274,909.93

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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.