Home / 311,913.40-467,639.70-124,828.60

Finding the Fourth Proportional to 311,913.40, 467,639.70 and 124,828.60

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Solution

The fourth proportional to 311,913.40, 467,639.70 and 124,828.60 is: 187,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,913.40 : 467,639.70 = 124,828.60 : x
  2. Step 2: Convert to fraction form
    311,913.40/467,639.70 = 124,828.60/x
  3. Step 3: Cross multiply
    311,913.40x = 467,639.70 × 124,828.60
  4. Step 4: Simplify right side
    311,913.40x = 58,374,809,055.42
  5. Step 5: Solve for x
    x = 58,374,809,055.42/311,913.40
  6. Step 6: Final answer
    x = 187,150.69

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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.