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Finding the Fourth Proportional to 253,992.32, 350,513.44 and 139,281.41

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Solution

The fourth proportional to 253,992.32, 350,513.44 and 139,281.41 is: 192,210.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,992.32 : 350,513.44 = 139,281.41 : x
  2. Step 2: Convert to fraction form
    253,992.32/350,513.44 = 139,281.41/x
  3. Step 3: Cross multiply
    253,992.32x = 350,513.44 × 139,281.41
  4. Step 4: Simplify right side
    253,992.32x = 48,820,004,046.38
  5. Step 5: Solve for x
    x = 48,820,004,046.38/253,992.32
  6. Step 6: Final answer
    x = 192,210.55

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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.