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Finding the Fourth Proportional to 195,429.60, 292,917.60 and 90,259.20

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Solution

The fourth proportional to 195,429.60, 292,917.60 and 90,259.20 is: 135,284.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,429.60 : 292,917.60 = 90,259.20 : x
  2. Step 2: Convert to fraction form
    195,429.60/292,917.60 = 90,259.20/x
  3. Step 3: Cross multiply
    195,429.60x = 292,917.60 × 90,259.20
  4. Step 4: Simplify right side
    195,429.60x = 26,438,508,241.92
  5. Step 5: Solve for x
    x = 26,438,508,241.92/195,429.60
  6. Step 6: Final answer
    x = 135,284.05

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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.