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Finding the Fourth Proportional to 285,941.79, 428,613.39 and 96,336.64

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Solution

The fourth proportional to 285,941.79, 428,613.39 and 96,336.64 is: 144,404.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,941.79 : 428,613.39 = 96,336.64 : x
  2. Step 2: Convert to fraction form
    285,941.79/428,613.39 = 96,336.64/x
  3. Step 3: Cross multiply
    285,941.79x = 428,613.39 × 96,336.64
  4. Step 4: Simplify right side
    285,941.79x = 41,291,174,387.38
  5. Step 5: Solve for x
    x = 41,291,174,387.38/285,941.79
  6. Step 6: Final answer
    x = 144,404.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.