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Finding the Fourth Proportional to 250,494.48, 345,679.74 and 137,316.60

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Solution

The fourth proportional to 250,494.48, 345,679.74 and 137,316.60 is: 189,495.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,494.48 : 345,679.74 = 137,316.60 : x
  2. Step 2: Convert to fraction form
    250,494.48/345,679.74 = 137,316.60/x
  3. Step 3: Cross multiply
    250,494.48x = 345,679.74 × 137,316.60
  4. Step 4: Simplify right side
    250,494.48x = 47,467,566,585.68
  5. Step 5: Solve for x
    x = 47,467,566,585.68/250,494.48
  6. Step 6: Final answer
    x = 189,495.46

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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.