Home / 257,395.24-386,092.86-70,408.36

Finding the Fourth Proportional to 257,395.24, 386,092.86 and 70,408.36

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Solution

The fourth proportional to 257,395.24, 386,092.86 and 70,408.36 is: 105,612.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,395.24 : 386,092.86 = 70,408.36 : x
  2. Step 2: Convert to fraction form
    257,395.24/386,092.86 = 70,408.36/x
  3. Step 3: Cross multiply
    257,395.24x = 386,092.86 × 70,408.36
  4. Step 4: Simplify right side
    257,395.24x = 27,184,165,080.31
  5. Step 5: Solve for x
    x = 27,184,165,080.31/257,395.24
  6. Step 6: Final answer
    x = 105,612.54

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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.