Home / 259,845.60-389,476.80-147,579.60

Finding the Fourth Proportional to 259,845.60, 389,476.80 and 147,579.60

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Solution

The fourth proportional to 259,845.60, 389,476.80 and 147,579.60 is: 221,203.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,845.60 : 389,476.80 = 147,579.60 : x
  2. Step 2: Convert to fraction form
    259,845.60/389,476.80 = 147,579.60/x
  3. Step 3: Cross multiply
    259,845.60x = 389,476.80 × 147,579.60
  4. Step 4: Simplify right side
    259,845.60x = 57,478,830,353.28
  5. Step 5: Solve for x
    x = 57,478,830,353.28/259,845.60
  6. Step 6: Final answer
    x = 221,203.79

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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.