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Finding the Fourth Proportional to 245,990.56, 339,334.32 and 164,459.20

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Solution

The fourth proportional to 245,990.56, 339,334.32 and 164,459.20 is: 226,865.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,990.56 : 339,334.32 = 164,459.20 : x
  2. Step 2: Convert to fraction form
    245,990.56/339,334.32 = 164,459.20/x
  3. Step 3: Cross multiply
    245,990.56x = 339,334.32 × 164,459.20
  4. Step 4: Simplify right side
    245,990.56x = 55,806,650,799.74
  5. Step 5: Solve for x
    x = 55,806,650,799.74/245,990.56
  6. Step 6: Final answer
    x = 226,865.01

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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.