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Finding the Fourth Proportional to 343,670.45, 515,882.78 and 273,047.06

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Solution

The fourth proportional to 343,670.45, 515,882.78 and 273,047.06 is: 409,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,670.45 : 515,882.78 = 273,047.06 : x
  2. Step 2: Convert to fraction form
    343,670.45/515,882.78 = 273,047.06/x
  3. Step 3: Cross multiply
    343,670.45x = 515,882.78 × 273,047.06
  4. Step 4: Simplify right side
    343,670.45x = 140,860,272,438.98
  5. Step 5: Solve for x
    x = 140,860,272,438.98/343,670.45
  6. Step 6: Final answer
    x = 409,870.20

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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.