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Finding the Fourth Proportional to 326,195.60, 488,904.60 and 136,655.60

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Solution

The fourth proportional to 326,195.60, 488,904.60 and 136,655.60 is: 204,820.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,195.60 : 488,904.60 = 136,655.60 : x
  2. Step 2: Convert to fraction form
    326,195.60/488,904.60 = 136,655.60/x
  3. Step 3: Cross multiply
    326,195.60x = 488,904.60 × 136,655.60
  4. Step 4: Simplify right side
    326,195.60x = 66,811,551,455.76
  5. Step 5: Solve for x
    x = 66,811,551,455.76/326,195.60
  6. Step 6: Final answer
    x = 204,820.52

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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.