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Finding the Fourth Proportional to 250,442.88, 345,646.60 and 154,980.32

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Solution

The fourth proportional to 250,442.88, 345,646.60 and 154,980.32 is: 213,894.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,442.88 : 345,646.60 = 154,980.32 : x
  2. Step 2: Convert to fraction form
    250,442.88/345,646.60 = 154,980.32/x
  3. Step 3: Cross multiply
    250,442.88x = 345,646.60 × 154,980.32
  4. Step 4: Simplify right side
    250,442.88x = 53,568,420,674.91
  5. Step 5: Solve for x
    x = 53,568,420,674.91/250,442.88
  6. Step 6: Final answer
    x = 213,894.76

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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.