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Finding the Fourth Proportional to 351,083.86, 484,553.68 and 215,193.40

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Solution

The fourth proportional to 351,083.86, 484,553.68 and 215,193.40 is: 297,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,083.86 : 484,553.68 = 215,193.40 : x
  2. Step 2: Convert to fraction form
    351,083.86/484,553.68 = 215,193.40/x
  3. Step 3: Cross multiply
    351,083.86x = 484,553.68 × 215,193.40
  4. Step 4: Simplify right side
    351,083.86x = 104,272,753,881.71
  5. Step 5: Solve for x
    x = 104,272,753,881.71/351,083.86
  6. Step 6: Final answer
    x = 297,002.41

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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.