Home / 279,469.14-385,668.84-152,145.64

Finding the Fourth Proportional to 279,469.14, 385,668.84 and 152,145.64

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Solution

The fourth proportional to 279,469.14, 385,668.84 and 152,145.64 is: 209,961.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,469.14 : 385,668.84 = 152,145.64 : x
  2. Step 2: Convert to fraction form
    279,469.14/385,668.84 = 152,145.64/x
  3. Step 3: Cross multiply
    279,469.14x = 385,668.84 × 152,145.64
  4. Step 4: Simplify right side
    279,469.14x = 58,677,833,542.49
  5. Step 5: Solve for x
    x = 58,677,833,542.49/279,469.14
  6. Step 6: Final answer
    x = 209,961.77

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1.5x scale

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.