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Finding the Fourth Proportional to 374,340, 561,350.16 and 216,677.28

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Solution

The fourth proportional to 374,340, 561,350.16 and 216,677.28 is: 324,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,340 : 561,350.16 = 216,677.28 : x
  2. Step 2: Convert to fraction form
    374,340/561,350.16 = 216,677.28/x
  3. Step 3: Cross multiply
    374,340x = 561,350.16 × 216,677.28
  4. Step 4: Simplify right side
    374,340x = 121,631,825,796.37
  5. Step 5: Solve for x
    x = 121,631,825,796.37/374,340
  6. Step 6: Final answer
    x = 324,923.40

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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.