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Finding the Fourth Proportional to 252,812.28, 348,883.08 and 139,636.92

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Solution

The fourth proportional to 252,812.28, 348,883.08 and 139,636.92 is: 192,700.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,812.28 : 348,883.08 = 139,636.92 : x
  2. Step 2: Convert to fraction form
    252,812.28/348,883.08 = 139,636.92/x
  3. Step 3: Cross multiply
    252,812.28x = 348,883.08 × 139,636.92
  4. Step 4: Simplify right side
    252,812.28x = 48,716,958,731.31
  5. Step 5: Solve for x
    x = 48,716,958,731.31/252,812.28
  6. Step 6: Final answer
    x = 192,700.13

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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.