Home / 311,867.02-430,351.72-175,857.49

Finding the Fourth Proportional to 311,867.02, 430,351.72 and 175,857.49

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Solution

The fourth proportional to 311,867.02, 430,351.72 and 175,857.49 is: 242,669.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,867.02 : 430,351.72 = 175,857.49 : x
  2. Step 2: Convert to fraction form
    311,867.02/430,351.72 = 175,857.49/x
  3. Step 3: Cross multiply
    311,867.02x = 430,351.72 × 175,857.49
  4. Step 4: Simplify right side
    311,867.02x = 75,680,571,963.15
  5. Step 5: Solve for x
    x = 75,680,571,963.15/311,867.02
  6. Step 6: Final answer
    x = 242,669.37

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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.