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Finding the Fourth Proportional to 374,501.36, 561,696.75 and 137,788.98

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Solution

The fourth proportional to 374,501.36, 561,696.75 and 137,788.98 is: 206,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,501.36 : 561,696.75 = 137,788.98 : x
  2. Step 2: Convert to fraction form
    374,501.36/561,696.75 = 137,788.98/x
  3. Step 3: Cross multiply
    374,501.36x = 561,696.75 × 137,788.98
  4. Step 4: Simplify right side
    374,501.36x = 77,395,622,251.82
  5. Step 5: Solve for x
    x = 77,395,622,251.82/374,501.36
  6. Step 6: Final answer
    x = 206,663.13

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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.