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Finding the Fourth Proportional to 351,082.86, 484,552.30 and 215,192.40

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Solution

The fourth proportional to 351,082.86, 484,552.30 and 215,192.40 is: 297,001.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,082.86 : 484,552.30 = 215,192.40 : x
  2. Step 2: Convert to fraction form
    351,082.86/484,552.30 = 215,192.40/x
  3. Step 3: Cross multiply
    351,082.86x = 484,552.30 × 215,192.40
  4. Step 4: Simplify right side
    351,082.86x = 104,271,972,362.52
  5. Step 5: Solve for x
    x = 104,271,972,362.52/351,082.86
  6. Step 6: Final answer
    x = 297,001.03

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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.