Home / 280,554.76-420,831.42-231,108.04

Finding the Fourth Proportional to 280,554.76, 420,831.42 and 231,108.04

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Solution

The fourth proportional to 280,554.76, 420,831.42 and 231,108.04 is: 346,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,554.76 : 420,831.42 = 231,108.04 : x
  2. Step 2: Convert to fraction form
    280,554.76/420,831.42 = 231,108.04/x
  3. Step 3: Cross multiply
    280,554.76x = 420,831.42 × 231,108.04
  4. Step 4: Simplify right side
    280,554.76x = 97,257,524,646.62
  5. Step 5: Solve for x
    x = 97,257,524,646.62/280,554.76
  6. Step 6: Final answer
    x = 346,661.47

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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.