Home / 253,405.13-379,804.34-118,287.41

Finding the Fourth Proportional to 253,405.13, 379,804.34 and 118,287.41

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Solution

The fourth proportional to 253,405.13, 379,804.34 and 118,287.41 is: 177,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,405.13 : 379,804.34 = 118,287.41 : x
  2. Step 2: Convert to fraction form
    253,405.13/379,804.34 = 118,287.41/x
  3. Step 3: Cross multiply
    253,405.13x = 379,804.34 × 118,287.41
  4. Step 4: Simplify right side
    253,405.13x = 44,926,070,082.06
  5. Step 5: Solve for x
    x = 44,926,070,082.06/253,405.13
  6. Step 6: Final answer
    x = 177,289.51

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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.