Home / 248,278.50-342,621.45-135,099.30

Finding the Fourth Proportional to 248,278.50, 342,621.45 and 135,099.30

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Solution

The fourth proportional to 248,278.50, 342,621.45 and 135,099.30 is: 186,435.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,278.50 : 342,621.45 = 135,099.30 : x
  2. Step 2: Convert to fraction form
    248,278.50/342,621.45 = 135,099.30/x
  3. Step 3: Cross multiply
    248,278.50x = 342,621.45 × 135,099.30
  4. Step 4: Simplify right side
    248,278.50x = 46,287,918,059.99
  5. Step 5: Solve for x
    x = 46,287,918,059.99/248,278.50
  6. Step 6: Final answer
    x = 186,435.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.