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Finding the Fourth Proportional to 339,052.77, 508,744.40 and 139,433.13

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Solution

The fourth proportional to 339,052.77, 508,744.40 and 139,433.13 is: 209,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,052.77 : 508,744.40 = 139,433.13 : x
  2. Step 2: Convert to fraction form
    339,052.77/508,744.40 = 139,433.13/x
  3. Step 3: Cross multiply
    339,052.77x = 508,744.40 × 139,433.13
  4. Step 4: Simplify right side
    339,052.77x = 70,935,823,364.81
  5. Step 5: Solve for x
    x = 70,935,823,364.81/339,052.77
  6. Step 6: Final answer
    x = 209,217.65

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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.