Home / 309,279.03-426,831.24-173,311.43

Finding the Fourth Proportional to 309,279.03, 426,831.24 and 173,311.43

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Solution

The fourth proportional to 309,279.03, 426,831.24 and 173,311.43 is: 239,184.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,279.03 : 426,831.24 = 173,311.43 : x
  2. Step 2: Convert to fraction form
    309,279.03/426,831.24 = 173,311.43/x
  3. Step 3: Cross multiply
    309,279.03x = 426,831.24 × 173,311.43
  4. Step 4: Simplify right side
    309,279.03x = 73,974,730,438.92
  5. Step 5: Solve for x
    x = 73,974,730,438.92/309,279.03
  6. Step 6: Final answer
    x = 239,184.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.