Home / 311,399.02-429,739.59-175,434.45

Finding the Fourth Proportional to 311,399.02, 429,739.59 and 175,434.45

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Solution

The fourth proportional to 311,399.02, 429,739.59 and 175,434.45 is: 242,104.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,399.02 : 429,739.59 = 175,434.45 : x
  2. Step 2: Convert to fraction form
    311,399.02/429,739.59 = 175,434.45/x
  3. Step 3: Cross multiply
    311,399.02x = 429,739.59 × 175,434.45
  4. Step 4: Simplify right side
    311,399.02x = 75,391,128,614.88
  5. Step 5: Solve for x
    x = 75,391,128,614.88/311,399.02
  6. Step 6: Final answer
    x = 242,104.58

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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.