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Finding the Fourth Proportional to 353,369.36, 487,662.72 and 202,495.52

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Solution

The fourth proportional to 353,369.36, 487,662.72 and 202,495.52 is: 279,451.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,369.36 : 487,662.72 = 202,495.52 : x
  2. Step 2: Convert to fraction form
    353,369.36/487,662.72 = 202,495.52/x
  3. Step 3: Cross multiply
    353,369.36x = 487,662.72 × 202,495.52
  4. Step 4: Simplify right side
    353,369.36x = 98,749,516,071.01
  5. Step 5: Solve for x
    x = 98,749,516,071.01/353,369.36
  6. Step 6: Final answer
    x = 279,451.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.