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Finding the Fourth Proportional to 205,416.20, 307,541.10 and 205,416.20

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Solution

The fourth proportional to 205,416.20, 307,541.10 and 205,416.20 is: 307,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,416.20 : 307,541.10 = 205,416.20 : x
  2. Step 2: Convert to fraction form
    205,416.20/307,541.10 = 205,416.20/x
  3. Step 3: Cross multiply
    205,416.20x = 307,541.10 × 205,416.20
  4. Step 4: Simplify right side
    205,416.20x = 63,173,924,105.82
  5. Step 5: Solve for x
    x = 63,173,924,105.82/205,416.20
  6. Step 6: Final answer
    x = 307,541.10

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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.