Home / 260,015.10-358,987.59-212,382.78

Finding the Fourth Proportional to 260,015.10, 358,987.59 and 212,382.78

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Solution

The fourth proportional to 260,015.10, 358,987.59 and 212,382.78 is: 293,224.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,015.10 : 358,987.59 = 212,382.78 : x
  2. Step 2: Convert to fraction form
    260,015.10/358,987.59 = 212,382.78/x
  3. Step 3: Cross multiply
    260,015.10x = 358,987.59 × 212,382.78
  4. Step 4: Simplify right side
    260,015.10x = 76,242,782,349.70
  5. Step 5: Solve for x
    x = 76,242,782,349.70/260,015.10
  6. Step 6: Final answer
    x = 293,224.44

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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.