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Finding the Fourth Proportional to 374,315.60, 561,414 and 121,602.08

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Solution

The fourth proportional to 374,315.60, 561,414 and 121,602.08 is: 182,383.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,315.60 : 561,414 = 121,602.08 : x
  2. Step 2: Convert to fraction form
    374,315.60/561,414 = 121,602.08/x
  3. Step 3: Cross multiply
    374,315.60x = 561,414 × 121,602.08
  4. Step 4: Simplify right side
    374,315.60x = 68,269,110,141.12
  5. Step 5: Solve for x
    x = 68,269,110,141.12/374,315.60
  6. Step 6: Final answer
    x = 182,383.82

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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.