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Finding the Fourth Proportional to 325,830.60, 488,745.90 and 192,642.30

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Solution

The fourth proportional to 325,830.60, 488,745.90 and 192,642.30 is: 288,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,830.60 : 488,745.90 = 192,642.30 : x
  2. Step 2: Convert to fraction form
    325,830.60/488,745.90 = 192,642.30/x
  3. Step 3: Cross multiply
    325,830.60x = 488,745.90 × 192,642.30
  4. Step 4: Simplify right side
    325,830.60x = 94,153,134,291.57
  5. Step 5: Solve for x
    x = 94,153,134,291.57/325,830.60
  6. Step 6: Final answer
    x = 288,963.45

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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.