Home / 429,274.89-643,912.34-148,792.14

Finding the Fourth Proportional to 429,274.89, 643,912.34 and 148,792.14

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Solution

The fourth proportional to 429,274.89, 643,912.34 and 148,792.14 is: 223,188.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,274.89 : 643,912.34 = 148,792.14 : x
  2. Step 2: Convert to fraction form
    429,274.89/643,912.34 = 148,792.14/x
  3. Step 3: Cross multiply
    429,274.89x = 643,912.34 × 148,792.14
  4. Step 4: Simplify right side
    429,274.89x = 95,809,094,297.05
  5. Step 5: Solve for x
    x = 95,809,094,297.05/429,274.89
  6. Step 6: Final answer
    x = 223,188.21

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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.