Home / 245,245.24-338,447.34-137,817.40

Finding the Fourth Proportional to 245,245.24, 338,447.34 and 137,817.40

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Solution

The fourth proportional to 245,245.24, 338,447.34 and 137,817.40 is: 190,193.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,245.24 : 338,447.34 = 137,817.40 : x
  2. Step 2: Convert to fraction form
    245,245.24/338,447.34 = 137,817.40/x
  3. Step 3: Cross multiply
    245,245.24x = 338,447.34 × 137,817.40
  4. Step 4: Simplify right side
    245,245.24x = 46,643,932,435.72
  5. Step 5: Solve for x
    x = 46,643,932,435.72/245,245.24
  6. Step 6: Final answer
    x = 190,193.02

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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.