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Finding the Fourth Proportional to 352,850.08, 487,010.10 and 217,000.90

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Solution

The fourth proportional to 352,850.08, 487,010.10 and 217,000.90 is: 299,508.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,850.08 : 487,010.10 = 217,000.90 : x
  2. Step 2: Convert to fraction form
    352,850.08/487,010.10 = 217,000.90/x
  3. Step 3: Cross multiply
    352,850.08x = 487,010.10 × 217,000.90
  4. Step 4: Simplify right side
    352,850.08x = 105,681,630,009.09
  5. Step 5: Solve for x
    x = 105,681,630,009.09/352,850.08
  6. Step 6: Final answer
    x = 299,508.59

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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.