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Finding the Fourth Proportional to 262,587.10, 393,905.16 and 203,489.10

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Solution

The fourth proportional to 262,587.10, 393,905.16 and 203,489.10 is: 305,252.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,587.10 : 393,905.16 = 203,489.10 : x
  2. Step 2: Convert to fraction form
    262,587.10/393,905.16 = 203,489.10/x
  3. Step 3: Cross multiply
    262,587.10x = 393,905.16 × 203,489.10
  4. Step 4: Simplify right side
    262,587.10x = 80,155,406,493.76
  5. Step 5: Solve for x
    x = 80,155,406,493.76/262,587.10
  6. Step 6: Final answer
    x = 305,252.64

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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.