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Finding the Fourth Proportional to 438,650.93, 658,039.17 and 135,070.77

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Solution

The fourth proportional to 438,650.93, 658,039.17 and 135,070.77 is: 202,625.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,650.93 : 658,039.17 = 135,070.77 : x
  2. Step 2: Convert to fraction form
    438,650.93/658,039.17 = 135,070.77/x
  3. Step 3: Cross multiply
    438,650.93x = 658,039.17 × 135,070.77
  4. Step 4: Simplify right side
    438,650.93x = 88,881,857,382.06
  5. Step 5: Solve for x
    x = 88,881,857,382.06/438,650.93
  6. Step 6: Final answer
    x = 202,625.49

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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.