Home / 311,839.02-430,312.08-175,906.44

Finding the Fourth Proportional to 311,839.02, 430,312.08 and 175,906.44

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Solution

The fourth proportional to 311,839.02, 430,312.08 and 175,906.44 is: 242,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,839.02 : 430,312.08 = 175,906.44 : x
  2. Step 2: Convert to fraction form
    311,839.02/430,312.08 = 175,906.44/x
  3. Step 3: Cross multiply
    311,839.02x = 430,312.08 × 175,906.44
  4. Step 4: Simplify right side
    311,839.02x = 75,694,666,081.80
  5. Step 5: Solve for x
    x = 75,694,666,081.80/311,839.02
  6. Step 6: Final answer
    x = 242,736.35

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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.