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Finding the Fourth Proportional to 326,036.88, 489,056.94 and 148,419.63

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Solution

The fourth proportional to 326,036.88, 489,056.94 and 148,419.63 is: 222,630.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,036.88 : 489,056.94 = 148,419.63 : x
  2. Step 2: Convert to fraction form
    326,036.88/489,056.94 = 148,419.63/x
  3. Step 3: Cross multiply
    326,036.88x = 489,056.94 × 148,419.63
  4. Step 4: Simplify right side
    326,036.88x = 72,585,650,083.73
  5. Step 5: Solve for x
    x = 72,585,650,083.73/326,036.88
  6. Step 6: Final answer
    x = 222,630.18

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1.5x scale

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.