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Finding the Fourth Proportional to 374,038.62, 561,131.10 and 137,383.08

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Solution

The fourth proportional to 374,038.62, 561,131.10 and 137,383.08 is: 206,101.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,038.62 : 561,131.10 = 137,383.08 : x
  2. Step 2: Convert to fraction form
    374,038.62/561,131.10 = 137,383.08/x
  3. Step 3: Cross multiply
    374,038.62x = 561,131.10 × 137,383.08
  4. Step 4: Simplify right side
    374,038.62x = 77,089,918,801.79
  5. Step 5: Solve for x
    x = 77,089,918,801.79/374,038.62
  6. Step 6: Final answer
    x = 206,101.50

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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.