Home / 250,439.87-345,642.45-154,977.32

Finding the Fourth Proportional to 250,439.87, 345,642.45 and 154,977.32

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Solution

The fourth proportional to 250,439.87, 345,642.45 and 154,977.32 is: 213,890.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,439.87 : 345,642.45 = 154,977.32 : x
  2. Step 2: Convert to fraction form
    250,439.87/345,642.45 = 154,977.32/x
  3. Step 3: Cross multiply
    250,439.87x = 345,642.45 × 154,977.32
  4. Step 4: Simplify right side
    250,439.87x = 53,566,740,579.23
  5. Step 5: Solve for x
    x = 53,566,740,579.23/250,439.87
  6. Step 6: Final answer
    x = 213,890.63

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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.