Home / 279,470.08-385,668.60-152,145.64

Finding the Fourth Proportional to 279,470.08, 385,668.60 and 152,145.64

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Solution

The fourth proportional to 279,470.08, 385,668.60 and 152,145.64 is: 209,960.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,470.08 : 385,668.60 = 152,145.64 : x
  2. Step 2: Convert to fraction form
    279,470.08/385,668.60 = 152,145.64/x
  3. Step 3: Cross multiply
    279,470.08x = 385,668.60 × 152,145.64
  4. Step 4: Simplify right side
    279,470.08x = 58,677,795,974.90
  5. Step 5: Solve for x
    x = 58,677,795,974.90/279,470.08
  6. Step 6: Final answer
    x = 209,960.92

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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.