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Finding the Fourth Proportional to 326,277.60, 489,027.60 and 136,737.60

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Solution

The fourth proportional to 326,277.60, 489,027.60 and 136,737.60 is: 204,943.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,277.60 : 489,027.60 = 136,737.60 : x
  2. Step 2: Convert to fraction form
    326,277.60/489,027.60 = 136,737.60/x
  3. Step 3: Cross multiply
    326,277.60x = 489,027.60 × 136,737.60
  4. Step 4: Simplify right side
    326,277.60x = 66,868,460,357.76
  5. Step 5: Solve for x
    x = 66,868,460,357.76/326,277.60
  6. Step 6: Final answer
    x = 204,943.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.