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Finding the Fourth Proportional to 314,613.08, 434,167.20 and 171,371.76

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Solution

The fourth proportional to 314,613.08, 434,167.20 and 171,371.76 is: 236,493.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,613.08 : 434,167.20 = 171,371.76 : x
  2. Step 2: Convert to fraction form
    314,613.08/434,167.20 = 171,371.76/x
  3. Step 3: Cross multiply
    314,613.08x = 434,167.20 × 171,371.76
  4. Step 4: Simplify right side
    314,613.08x = 74,403,997,198.27
  5. Step 5: Solve for x
    x = 74,403,997,198.27/314,613.08
  6. Step 6: Final answer
    x = 236,493.65

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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.