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Finding the Fourth Proportional to 374,501.17, 561,696.47 and 137,788.79

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Solution

The fourth proportional to 374,501.17, 561,696.47 and 137,788.79 is: 206,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,501.17 : 561,696.47 = 137,788.79 : x
  2. Step 2: Convert to fraction form
    374,501.17/561,696.47 = 137,788.79/x
  3. Step 3: Cross multiply
    374,501.17x = 561,696.47 × 137,788.79
  4. Step 4: Simplify right side
    374,501.17x = 77,395,477,663.87
  5. Step 5: Solve for x
    x = 77,395,477,663.87/374,501.17
  6. Step 6: Final answer
    x = 206,662.85

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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.