Home / 279,113.04-385,165.26-151,788.78

Finding the Fourth Proportional to 279,113.04, 385,165.26 and 151,788.78

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Solution

The fourth proportional to 279,113.04, 385,165.26 and 151,788.78 is: 209,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,113.04 : 385,165.26 = 151,788.78 : x
  2. Step 2: Convert to fraction form
    279,113.04/385,165.26 = 151,788.78/x
  3. Step 3: Cross multiply
    279,113.04x = 385,165.26 × 151,788.78
  4. Step 4: Simplify right side
    279,113.04x = 58,463,764,913.78
  5. Step 5: Solve for x
    x = 58,463,764,913.78/279,113.04
  6. Step 6: Final answer
    x = 209,462.68

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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.