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Finding the Fourth Proportional to 489,682.80, 734,265.80 and 152,660.64

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Solution

The fourth proportional to 489,682.80, 734,265.80 and 152,660.64 is: 228,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,682.80 : 734,265.80 = 152,660.64 : x
  2. Step 2: Convert to fraction form
    489,682.80/734,265.80 = 152,660.64/x
  3. Step 3: Cross multiply
    489,682.80x = 734,265.80 × 152,660.64
  4. Step 4: Simplify right side
    489,682.80x = 112,093,486,958.11
  5. Step 5: Solve for x
    x = 112,093,486,958.11/489,682.80
  6. Step 6: Final answer
    x = 228,910.40

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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.