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Finding the Fourth Proportional to 352,027.48, 485,881.98 and 208,870.60

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Solution

The fourth proportional to 352,027.48, 485,881.98 and 208,870.60 is: 288,291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,027.48 : 485,881.98 = 208,870.60 : x
  2. Step 2: Convert to fraction form
    352,027.48/485,881.98 = 208,870.60/x
  3. Step 3: Cross multiply
    352,027.48x = 485,881.98 × 208,870.60
  4. Step 4: Simplify right side
    352,027.48x = 101,486,460,691.79
  5. Step 5: Solve for x
    x = 101,486,460,691.79/352,027.48
  6. Step 6: Final answer
    x = 288,291.30

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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.