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Finding the Fourth Proportional to 374,360, 561,380.16 and 216,697.28

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Solution

The fourth proportional to 374,360, 561,380.16 and 216,697.28 is: 324,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,360 : 561,380.16 = 216,697.28 : x
  2. Step 2: Convert to fraction form
    374,360/561,380.16 = 216,697.28/x
  3. Step 3: Cross multiply
    374,360x = 561,380.16 × 216,697.28
  4. Step 4: Simplify right side
    374,360x = 121,649,553,717.97
  5. Step 5: Solve for x
    x = 121,649,553,717.97/374,360
  6. Step 6: Final answer
    x = 324,953.40

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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.