Home / 257,523.07-386,276.40-67,977.60

Finding the Fourth Proportional to 257,523.07, 386,276.40 and 67,977.60

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Solution

The fourth proportional to 257,523.07, 386,276.40 and 67,977.60 is: 101,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,523.07 : 386,276.40 = 67,977.60 : x
  2. Step 2: Convert to fraction form
    257,523.07/386,276.40 = 67,977.60/x
  3. Step 3: Cross multiply
    257,523.07x = 386,276.40 × 67,977.60
  4. Step 4: Simplify right side
    257,523.07x = 26,258,142,608.64
  5. Step 5: Solve for x
    x = 26,258,142,608.64/257,523.07
  6. Step 6: Final answer
    x = 101,964.24

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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.