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Finding the Fourth Proportional to 363,478.60, 501,647.55 and 208,490.36

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Solution

The fourth proportional to 363,478.60, 501,647.55 and 208,490.36 is: 287,743.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,478.60 : 501,647.55 = 208,490.36 : x
  2. Step 2: Convert to fraction form
    363,478.60/501,647.55 = 208,490.36/x
  3. Step 3: Cross multiply
    363,478.60x = 501,647.55 × 208,490.36
  4. Step 4: Simplify right side
    363,478.60x = 104,588,678,292.62
  5. Step 5: Solve for x
    x = 104,588,678,292.62/363,478.60
  6. Step 6: Final answer
    x = 287,743.71

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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.