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Finding the Fourth Proportional to 250,151.74, 345,209.98 and 135,431.60

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Solution

The fourth proportional to 250,151.74, 345,209.98 and 135,431.60 is: 186,895.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,151.74 : 345,209.98 = 135,431.60 : x
  2. Step 2: Convert to fraction form
    250,151.74/345,209.98 = 135,431.60/x
  3. Step 3: Cross multiply
    250,151.74x = 345,209.98 × 135,431.60
  4. Step 4: Simplify right side
    250,151.74x = 46,752,339,927.37
  5. Step 5: Solve for x
    x = 46,752,339,927.37/250,151.74
  6. Step 6: Final answer
    x = 186,895.92

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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.