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Finding the Fourth Proportional to 540,419.22, 810,505.44 and 203,495.40

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Solution

The fourth proportional to 540,419.22, 810,505.44 and 203,495.40 is: 305,196.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,419.22 : 810,505.44 = 203,495.40 : x
  2. Step 2: Convert to fraction form
    540,419.22/810,505.44 = 203,495.40/x
  3. Step 3: Cross multiply
    540,419.22x = 810,505.44 × 203,495.40
  4. Step 4: Simplify right side
    540,419.22x = 164,934,128,714.98
  5. Step 5: Solve for x
    x = 164,934,128,714.98/540,419.22
  6. Step 6: Final answer
    x = 305,196.64

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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.