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Finding the Fourth Proportional to 253,600.81, 380,412.90 and 141,196.39

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Solution

The fourth proportional to 253,600.81, 380,412.90 and 141,196.39 is: 211,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,600.81 : 380,412.90 = 141,196.39 : x
  2. Step 2: Convert to fraction form
    253,600.81/380,412.90 = 141,196.39/x
  3. Step 3: Cross multiply
    253,600.81x = 380,412.90 × 141,196.39
  4. Step 4: Simplify right side
    253,600.81x = 53,712,927,238.40
  5. Step 5: Solve for x
    x = 53,712,927,238.40/253,600.81
  6. Step 6: Final answer
    x = 211,801.09

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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.