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Finding the Fourth Proportional to 361,889.90, 499,398.41 and 208,922.93

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Solution

The fourth proportional to 361,889.90, 499,398.41 and 208,922.93 is: 288,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,889.90 : 499,398.41 = 208,922.93 : x
  2. Step 2: Convert to fraction form
    361,889.90/499,398.41 = 208,922.93/x
  3. Step 3: Cross multiply
    361,889.90x = 499,398.41 × 208,922.93
  4. Step 4: Simplify right side
    361,889.90x = 104,335,779,054.54
  5. Step 5: Solve for x
    x = 104,335,779,054.54/361,889.90
  6. Step 6: Final answer
    x = 288,308.07

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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.