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Finding the Fourth Proportional to 250,437.87, 345,639.69 and 154,975.32

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Solution

The fourth proportional to 250,437.87, 345,639.69 and 154,975.32 is: 213,887.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,437.87 : 345,639.69 = 154,975.32 : x
  2. Step 2: Convert to fraction form
    250,437.87/345,639.69 = 154,975.32/x
  3. Step 3: Cross multiply
    250,437.87x = 345,639.69 × 154,975.32
  4. Step 4: Simplify right side
    250,437.87x = 53,565,621,562.45
  5. Step 5: Solve for x
    x = 53,565,621,562.45/250,437.87
  6. Step 6: Final answer
    x = 213,887.87

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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.