Home / 257,344.44-386,004.30-70,356.36

Finding the Fourth Proportional to 257,344.44, 386,004.30 and 70,356.36

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Solution

The fourth proportional to 257,344.44, 386,004.30 and 70,356.36 is: 105,531.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,344.44 : 386,004.30 = 70,356.36 : x
  2. Step 2: Convert to fraction form
    257,344.44/386,004.30 = 70,356.36/x
  3. Step 3: Cross multiply
    257,344.44x = 386,004.30 × 70,356.36
  4. Step 4: Simplify right side
    257,344.44x = 27,157,857,492.35
  5. Step 5: Solve for x
    x = 27,157,857,492.35/257,344.44
  6. Step 6: Final answer
    x = 105,531.16

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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.