Home / 311,513.25-467,263.16-86,867.70

Finding the Fourth Proportional to 311,513.25, 467,263.16 and 86,867.70

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Solution

The fourth proportional to 311,513.25, 467,263.16 and 86,867.70 is: 130,299.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,513.25 : 467,263.16 = 86,867.70 : x
  2. Step 2: Convert to fraction form
    311,513.25/467,263.16 = 86,867.70/x
  3. Step 3: Cross multiply
    311,513.25x = 467,263.16 × 86,867.70
  4. Step 4: Simplify right side
    311,513.25x = 40,590,076,003.93
  5. Step 5: Solve for x
    x = 40,590,076,003.93/311,513.25
  6. Step 6: Final answer
    x = 130,299.68

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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.