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Finding the Fourth Proportional to 325,431.60, 488,102.40 and 100,946.40

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Solution

The fourth proportional to 325,431.60, 488,102.40 and 100,946.40 is: 151,405.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,431.60 : 488,102.40 = 100,946.40 : x
  2. Step 2: Convert to fraction form
    325,431.60/488,102.40 = 100,946.40/x
  3. Step 3: Cross multiply
    325,431.60x = 488,102.40 × 100,946.40
  4. Step 4: Simplify right side
    325,431.60x = 49,272,180,111.36
  5. Step 5: Solve for x
    x = 49,272,180,111.36/325,431.60
  6. Step 6: Final answer
    x = 151,405.64

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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.