Home / 250,212.12-345,296.16-137,035.68

Finding the Fourth Proportional to 250,212.12, 345,296.16 and 137,035.68

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Solution

The fourth proportional to 250,212.12, 345,296.16 and 137,035.68 is: 189,111.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,212.12 : 345,296.16 = 137,035.68 : x
  2. Step 2: Convert to fraction form
    250,212.12/345,296.16 = 137,035.68/x
  3. Step 3: Cross multiply
    250,212.12x = 345,296.16 × 137,035.68
  4. Step 4: Simplify right side
    250,212.12x = 47,317,894,086.99
  5. Step 5: Solve for x
    x = 47,317,894,086.99/250,212.12
  6. Step 6: Final answer
    x = 189,111.12

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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.