Home / 208,401.24-312,601.86-138,417.24

Finding the Fourth Proportional to 208,401.24, 312,601.86 and 138,417.24

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Solution

The fourth proportional to 208,401.24, 312,601.86 and 138,417.24 is: 207,625.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,401.24 : 312,601.86 = 138,417.24 : x
  2. Step 2: Convert to fraction form
    208,401.24/312,601.86 = 138,417.24/x
  3. Step 3: Cross multiply
    208,401.24x = 312,601.86 × 138,417.24
  4. Step 4: Simplify right side
    208,401.24x = 43,269,486,680.07
  5. Step 5: Solve for x
    x = 43,269,486,680.07/208,401.24
  6. Step 6: Final answer
    x = 207,625.86

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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.