Home / 248,686.40-343,187.16-135,509.06

Finding the Fourth Proportional to 248,686.40, 343,187.16 and 135,509.06

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Solution

The fourth proportional to 248,686.40, 343,187.16 and 135,509.06 is: 187,002.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,686.40 : 343,187.16 = 135,509.06 : x
  2. Step 2: Convert to fraction form
    248,686.40/343,187.16 = 135,509.06/x
  3. Step 3: Cross multiply
    248,686.40x = 343,187.16 × 135,509.06
  4. Step 4: Simplify right side
    248,686.40x = 46,504,969,455.67
  5. Step 5: Solve for x
    x = 46,504,969,455.67/248,686.40
  6. Step 6: Final answer
    x = 187,002.46

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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.