Home / 279,265.94-385,388.61-151,942.40

Finding the Fourth Proportional to 279,265.94, 385,388.61 and 151,942.40

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Solution

The fourth proportional to 279,265.94, 385,388.61 and 151,942.40 is: 209,681.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,265.94 : 385,388.61 = 151,942.40 : x
  2. Step 2: Convert to fraction form
    279,265.94/385,388.61 = 151,942.40/x
  3. Step 3: Cross multiply
    279,265.94x = 385,388.61 × 151,942.40
  4. Step 4: Simplify right side
    279,265.94x = 58,556,870,336.06
  5. Step 5: Solve for x
    x = 58,556,870,336.06/279,265.94
  6. Step 6: Final answer
    x = 209,681.39

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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.