Home / 509,965.65-765,043.09-168,432.73

Finding the Fourth Proportional to 509,965.65, 765,043.09 and 168,432.73

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Solution

The fourth proportional to 509,965.65, 765,043.09 and 168,432.73 is: 252,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,965.65 : 765,043.09 = 168,432.73 : x
  2. Step 2: Convert to fraction form
    509,965.65/765,043.09 = 168,432.73/x
  3. Step 3: Cross multiply
    509,965.65x = 765,043.09 × 168,432.73
  4. Step 4: Simplify right side
    509,965.65x = 128,858,293,882.65
  5. Step 5: Solve for x
    x = 128,858,293,882.65/509,965.65
  6. Step 6: Final answer
    x = 252,680.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.