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Finding the Fourth Proportional to 245,425.08, 338,700.78 and 137,995.32

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Solution

The fourth proportional to 245,425.08, 338,700.78 and 137,995.32 is: 190,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,425.08 : 338,700.78 = 137,995.32 : x
  2. Step 2: Convert to fraction form
    245,425.08/338,700.78 = 137,995.32/x
  3. Step 3: Cross multiply
    245,425.08x = 338,700.78 × 137,995.32
  4. Step 4: Simplify right side
    245,425.08x = 46,739,122,520.35
  5. Step 5: Solve for x
    x = 46,739,122,520.35/245,425.08
  6. Step 6: Final answer
    x = 190,441.51

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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.