Home / 242,486.40-363,556.80-109,257.60

Finding the Fourth Proportional to 242,486.40, 363,556.80 and 109,257.60

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Solution

The fourth proportional to 242,486.40, 363,556.80 and 109,257.60 is: 163,808.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,486.40 : 363,556.80 = 109,257.60 : x
  2. Step 2: Convert to fraction form
    242,486.40/363,556.80 = 109,257.60/x
  3. Step 3: Cross multiply
    242,486.40x = 363,556.80 × 109,257.60
  4. Step 4: Simplify right side
    242,486.40x = 39,721,343,431.68
  5. Step 5: Solve for x
    x = 39,721,343,431.68/242,486.40
  6. Step 6: Final answer
    x = 163,808.54

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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.