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Finding the Fourth Proportional to 320,281.32, 480,258.55 and 106,972.41

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Solution

The fourth proportional to 320,281.32, 480,258.55 and 106,972.41 is: 160,404.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,281.32 : 480,258.55 = 106,972.41 : x
  2. Step 2: Convert to fraction form
    320,281.32/480,258.55 = 106,972.41/x
  3. Step 3: Cross multiply
    320,281.32x = 480,258.55 × 106,972.41
  4. Step 4: Simplify right side
    320,281.32x = 51,374,414,516.61
  5. Step 5: Solve for x
    x = 51,374,414,516.61/320,281.32
  6. Step 6: Final answer
    x = 160,404.03

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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.