Home / 311,780.04-430,250.43-175,811.51

Finding the Fourth Proportional to 311,780.04, 430,250.43 and 175,811.51

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Solution

The fourth proportional to 311,780.04, 430,250.43 and 175,811.51 is: 242,616.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,780.04 : 430,250.43 = 175,811.51 : x
  2. Step 2: Convert to fraction form
    311,780.04/430,250.43 = 175,811.51/x
  3. Step 3: Cross multiply
    311,780.04x = 430,250.43 × 175,811.51
  4. Step 4: Simplify right side
    311,780.04x = 75,642,979,511.37
  5. Step 5: Solve for x
    x = 75,642,979,511.37/311,780.04
  6. Step 6: Final answer
    x = 242,616.49

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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.