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Finding the Fourth Proportional to 250,008.74, 345,009.44 and 135,284.88

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Solution

The fourth proportional to 250,008.74, 345,009.44 and 135,284.88 is: 186,691.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,008.74 : 345,009.44 = 135,284.88 : x
  2. Step 2: Convert to fraction form
    250,008.74/345,009.44 = 135,284.88/x
  3. Step 3: Cross multiply
    250,008.74x = 345,009.44 × 135,284.88
  4. Step 4: Simplify right side
    250,008.74x = 46,674,562,321.26
  5. Step 5: Solve for x
    x = 46,674,562,321.26/250,008.74
  6. Step 6: Final answer
    x = 186,691.72

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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.