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Finding the Fourth Proportional to 252,292.69, 348,163.53 and 139,115.71

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Solution

The fourth proportional to 252,292.69, 348,163.53 and 139,115.71 is: 191,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,292.69 : 348,163.53 = 139,115.71 : x
  2. Step 2: Convert to fraction form
    252,292.69/348,163.53 = 139,115.71/x
  3. Step 3: Cross multiply
    252,292.69x = 348,163.53 × 139,115.71
  4. Step 4: Simplify right side
    252,292.69x = 48,435,016,672.06
  5. Step 5: Solve for x
    x = 48,435,016,672.06/252,292.69
  6. Step 6: Final answer
    x = 191,979.47

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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.