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Finding the Fourth Proportional to 252,758.43, 348,806.39 and 139,580.91

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Solution

The fourth proportional to 252,758.43, 348,806.39 and 139,580.91 is: 192,621.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,758.43 : 348,806.39 = 139,580.91 : x
  2. Step 2: Convert to fraction form
    252,758.43/348,806.39 = 139,580.91/x
  3. Step 3: Cross multiply
    252,758.43x = 348,806.39 × 139,580.91
  4. Step 4: Simplify right side
    252,758.43x = 48,686,712,632.11
  5. Step 5: Solve for x
    x = 48,686,712,632.11/252,758.43
  6. Step 6: Final answer
    x = 192,621.52

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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.