Home / 248,385.28-342,762.96-135,205.60

Finding the Fourth Proportional to 248,385.28, 342,762.96 and 135,205.60

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Solution

The fourth proportional to 248,385.28, 342,762.96 and 135,205.60 is: 186,578.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,385.28 : 342,762.96 = 135,205.60 : x
  2. Step 2: Convert to fraction form
    248,385.28/342,762.96 = 135,205.60/x
  3. Step 3: Cross multiply
    248,385.28x = 342,762.96 × 135,205.60
  4. Step 4: Simplify right side
    248,385.28x = 46,343,471,664.58
  5. Step 5: Solve for x
    x = 46,343,471,664.58/248,385.28
  6. Step 6: Final answer
    x = 186,578.98

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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.