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Finding the Fourth Proportional to 250,470.64, 345,684.88 and 155,008.08

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Solution

The fourth proportional to 250,470.64, 345,684.88 and 155,008.08 is: 213,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,470.64 : 345,684.88 = 155,008.08 : x
  2. Step 2: Convert to fraction form
    250,470.64/345,684.88 = 155,008.08/x
  3. Step 3: Cross multiply
    250,470.64x = 345,684.88 × 155,008.08
  4. Step 4: Simplify right side
    250,470.64x = 53,583,949,533.83
  5. Step 5: Solve for x
    x = 53,583,949,533.83/250,470.64
  6. Step 6: Final answer
    x = 213,933.06

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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.