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Finding the Fourth Proportional to 279,447.57, 385,623.99 and 158,600.03

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Solution

The fourth proportional to 279,447.57, 385,623.99 and 158,600.03 is: 218,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,447.57 : 385,623.99 = 158,600.03 : x
  2. Step 2: Convert to fraction form
    279,447.57/385,623.99 = 158,600.03/x
  3. Step 3: Cross multiply
    279,447.57x = 385,623.99 × 158,600.03
  4. Step 4: Simplify right side
    279,447.57x = 61,159,974,454.60
  5. Step 5: Solve for x
    x = 61,159,974,454.60/279,447.57
  6. Step 6: Final answer
    x = 218,860.28

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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.