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Finding the Fourth Proportional to 252,633.06, 348,632.91 and 139,455

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Solution

The fourth proportional to 252,633.06, 348,632.91 and 139,455 is: 192,447.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,633.06 : 348,632.91 = 139,455 : x
  2. Step 2: Convert to fraction form
    252,633.06/348,632.91 = 139,455/x
  3. Step 3: Cross multiply
    252,633.06x = 348,632.91 × 139,455
  4. Step 4: Simplify right side
    252,633.06x = 48,618,602,464.05
  5. Step 5: Solve for x
    x = 48,618,602,464.05/252,633.06
  6. Step 6: Final answer
    x = 192,447.51

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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.