Home / 262,556.40-393,834.60-157,321.20

Finding the Fourth Proportional to 262,556.40, 393,834.60 and 157,321.20

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Solution

The fourth proportional to 262,556.40, 393,834.60 and 157,321.20 is: 235,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,556.40 : 393,834.60 = 157,321.20 : x
  2. Step 2: Convert to fraction form
    262,556.40/393,834.60 = 157,321.20/x
  3. Step 3: Cross multiply
    262,556.40x = 393,834.60 × 157,321.20
  4. Step 4: Simplify right side
    262,556.40x = 61,958,531,873.52
  5. Step 5: Solve for x
    x = 61,958,531,873.52/262,556.40
  6. Step 6: Final answer
    x = 235,981.80

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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.