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Finding the Fourth Proportional to 353,495.52, 487,662.66 and 210,174.12

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Solution

The fourth proportional to 353,495.52, 487,662.66 and 210,174.12 is: 289,944.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,495.52 : 487,662.66 = 210,174.12 : x
  2. Step 2: Convert to fraction form
    353,495.52/487,662.66 = 210,174.12/x
  3. Step 3: Cross multiply
    353,495.52x = 487,662.66 × 210,174.12
  4. Step 4: Simplify right side
    353,495.52x = 102,494,070,422.36
  5. Step 5: Solve for x
    x = 102,494,070,422.36/353,495.52
  6. Step 6: Final answer
    x = 289,944.47

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1.5x scale

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.