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Finding the Fourth Proportional to 355,543.62, 490,773.69 and 204,700.74

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Solution

The fourth proportional to 355,543.62, 490,773.69 and 204,700.74 is: 282,558.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,543.62 : 490,773.69 = 204,700.74 : x
  2. Step 2: Convert to fraction form
    355,543.62/490,773.69 = 204,700.74/x
  3. Step 3: Cross multiply
    355,543.62x = 490,773.69 × 204,700.74
  4. Step 4: Simplify right side
    355,543.62x = 100,461,737,515.53
  5. Step 5: Solve for x
    x = 100,461,737,515.53/355,543.62
  6. Step 6: Final answer
    x = 282,558.12

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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.