Home / 438,974.15-658,392.48-139,415.27

Finding the Fourth Proportional to 438,974.15, 658,392.48 and 139,415.27

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Solution

The fourth proportional to 438,974.15, 658,392.48 and 139,415.27 is: 209,101.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,974.15 : 658,392.48 = 139,415.27 : x
  2. Step 2: Convert to fraction form
    438,974.15/658,392.48 = 139,415.27/x
  3. Step 3: Cross multiply
    438,974.15x = 658,392.48 × 139,415.27
  4. Step 4: Simplify right side
    438,974.15x = 91,789,962,073.21
  5. Step 5: Solve for x
    x = 91,789,962,073.21/438,974.15
  6. Step 6: Final answer
    x = 209,101.07

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1.5x scale

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.