Home / 207,492.02-311,316.45-81,222.50

Finding the Fourth Proportional to 207,492.02, 311,316.45 and 81,222.50

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Solution

The fourth proportional to 207,492.02, 311,316.45 and 81,222.50 is: 121,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,492.02 : 311,316.45 = 81,222.50 : x
  2. Step 2: Convert to fraction form
    207,492.02/311,316.45 = 81,222.50/x
  3. Step 3: Cross multiply
    207,492.02x = 311,316.45 × 81,222.50
  4. Step 4: Simplify right side
    207,492.02x = 25,285,898,803.54
  5. Step 5: Solve for x
    x = 25,285,898,803.54/207,492.02
  6. Step 6: Final answer
    x = 121,864.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.