Home / 306,912.24-423,539.78-177,875.78

Finding the Fourth Proportional to 306,912.24, 423,539.78 and 177,875.78

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Solution

The fourth proportional to 306,912.24, 423,539.78 and 177,875.78 is: 245,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,912.24 : 423,539.78 = 177,875.78 : x
  2. Step 2: Convert to fraction form
    306,912.24/423,539.78 = 177,875.78/x
  3. Step 3: Cross multiply
    306,912.24x = 423,539.78 × 177,875.78
  4. Step 4: Simplify right side
    306,912.24x = 75,337,465,721.45
  5. Step 5: Solve for x
    x = 75,337,465,721.45/306,912.24
  6. Step 6: Final answer
    x = 245,469.08

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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.