Home / 418,665.26-628,095.90-138,182.24

Finding the Fourth Proportional to 418,665.26, 628,095.90 and 138,182.24

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Solution

The fourth proportional to 418,665.26, 628,095.90 and 138,182.24 is: 207,305.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,665.26 : 628,095.90 = 138,182.24 : x
  2. Step 2: Convert to fraction form
    418,665.26/628,095.90 = 138,182.24/x
  3. Step 3: Cross multiply
    418,665.26x = 628,095.90 × 138,182.24
  4. Step 4: Simplify right side
    418,665.26x = 86,791,698,396.82
  5. Step 5: Solve for x
    x = 86,791,698,396.82/418,665.26
  6. Step 6: Final answer
    x = 207,305.71

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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.