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Finding the Fourth Proportional to 310,119.21, 427,940.15 and 175,983.21

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Solution

The fourth proportional to 310,119.21, 427,940.15 and 175,983.21 is: 242,843.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,119.21 : 427,940.15 = 175,983.21 : x
  2. Step 2: Convert to fraction form
    310,119.21/427,940.15 = 175,983.21/x
  3. Step 3: Cross multiply
    310,119.21x = 427,940.15 × 175,983.21
  4. Step 4: Simplify right side
    310,119.21x = 75,310,280,404.97
  5. Step 5: Solve for x
    x = 75,310,280,404.97/310,119.21
  6. Step 6: Final answer
    x = 242,843.00

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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.