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Finding the Fourth Proportional to 376,988.80, 520,246.26 and 207,233.86

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Solution

The fourth proportional to 376,988.80, 520,246.26 and 207,233.86 is: 285,983.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,988.80 : 520,246.26 = 207,233.86 : x
  2. Step 2: Convert to fraction form
    376,988.80/520,246.26 = 207,233.86/x
  3. Step 3: Cross multiply
    376,988.80x = 520,246.26 × 207,233.86
  4. Step 4: Simplify right side
    376,988.80x = 107,812,640,610.36
  5. Step 5: Solve for x
    x = 107,812,640,610.36/376,988.80
  6. Step 6: Final answer
    x = 285,983.67

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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.