Home / 257,655.94-386,302.80-113,493.34

Finding the Fourth Proportional to 257,655.94, 386,302.80 and 113,493.34

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Solution

The fourth proportional to 257,655.94, 386,302.80 and 113,493.34 is: 170,160.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,655.94 : 386,302.80 = 113,493.34 : x
  2. Step 2: Convert to fraction form
    257,655.94/386,302.80 = 113,493.34/x
  3. Step 3: Cross multiply
    257,655.94x = 386,302.80 × 113,493.34
  4. Step 4: Simplify right side
    257,655.94x = 43,842,795,023.35
  5. Step 5: Solve for x
    x = 43,842,795,023.35/257,655.94
  6. Step 6: Final answer
    x = 170,160.23

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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.