Home / 248,598.42-343,064.04-135,421.20

Finding the Fourth Proportional to 248,598.42, 343,064.04 and 135,421.20

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Solution

The fourth proportional to 248,598.42, 343,064.04 and 135,421.20 is: 186,880.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,598.42 : 343,064.04 = 135,421.20 : x
  2. Step 2: Convert to fraction form
    248,598.42/343,064.04 = 135,421.20/x
  3. Step 3: Cross multiply
    248,598.42x = 343,064.04 × 135,421.20
  4. Step 4: Simplify right side
    248,598.42x = 46,458,143,973.65
  5. Step 5: Solve for x
    x = 46,458,143,973.65/248,598.42
  6. Step 6: Final answer
    x = 186,880.29

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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.