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Finding the Fourth Proportional to 252,160.88, 378,383.52 and 139,827.02

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Solution

The fourth proportional to 252,160.88, 378,383.52 and 139,827.02 is: 209,819.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,160.88 : 378,383.52 = 139,827.02 : x
  2. Step 2: Convert to fraction form
    252,160.88/378,383.52 = 139,827.02/x
  3. Step 3: Cross multiply
    252,160.88x = 378,383.52 × 139,827.02
  4. Step 4: Simplify right side
    252,160.88x = 52,908,240,018.71
  5. Step 5: Solve for x
    x = 52,908,240,018.71/252,160.88
  6. Step 6: Final answer
    x = 209,819.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.