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Finding the Fourth Proportional to 325,801.60, 488,702.40 and 115,460.80

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Solution

The fourth proportional to 325,801.60, 488,702.40 and 115,460.80 is: 173,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,801.60 : 488,702.40 = 115,460.80 : x
  2. Step 2: Convert to fraction form
    325,801.60/488,702.40 = 115,460.80/x
  3. Step 3: Cross multiply
    325,801.60x = 488,702.40 × 115,460.80
  4. Step 4: Simplify right side
    325,801.60x = 56,425,970,065.92
  5. Step 5: Solve for x
    x = 56,425,970,065.92/325,801.60
  6. Step 6: Final answer
    x = 173,191.20

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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.