Home / 326,058.40-489,089.20-148,441.12

Finding the Fourth Proportional to 326,058.40, 489,089.20 and 148,441.12

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Solution

The fourth proportional to 326,058.40, 489,089.20 and 148,441.12 is: 222,662.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,058.40 : 489,089.20 = 148,441.12 : x
  2. Step 2: Convert to fraction form
    326,058.40/489,089.20 = 148,441.12/x
  3. Step 3: Cross multiply
    326,058.40x = 489,089.20 × 148,441.12
  4. Step 4: Simplify right side
    326,058.40x = 72,600,948,627.90
  5. Step 5: Solve for x
    x = 72,600,948,627.90/326,058.40
  6. Step 6: Final answer
    x = 222,662.41

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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.