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Finding the Fourth Proportional to 374,537.79, 561,862.62 and 137,862.47

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Solution

The fourth proportional to 374,537.79, 561,862.62 and 137,862.47 is: 206,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,537.79 : 561,862.62 = 137,862.47 : x
  2. Step 2: Convert to fraction form
    374,537.79/561,862.62 = 137,862.47/x
  3. Step 3: Cross multiply
    374,537.79x = 561,862.62 × 137,862.47
  4. Step 4: Simplify right side
    374,537.79x = 77,459,769,998.53
  5. Step 5: Solve for x
    x = 77,459,769,998.53/374,537.79
  6. Step 6: Final answer
    x = 206,814.30

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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.