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Finding the Fourth Proportional to 374,203.42, 561,660 and 231,617.39

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Solution

The fourth proportional to 374,203.42, 561,660 and 231,617.39 is: 347,645.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,203.42 : 561,660 = 231,617.39 : x
  2. Step 2: Convert to fraction form
    374,203.42/561,660 = 231,617.39/x
  3. Step 3: Cross multiply
    374,203.42x = 561,660 × 231,617.39
  4. Step 4: Simplify right side
    374,203.42x = 130,090,220,459.10
  5. Step 5: Solve for x
    x = 130,090,220,459.10/374,203.42
  6. Step 6: Final answer
    x = 347,645.73

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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.