Home / 208,191.40-311,795.02-141,269.20

Finding the Fourth Proportional to 208,191.40, 311,795.02 and 141,269.20

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Solution

The fourth proportional to 208,191.40, 311,795.02 and 141,269.20 is: 211,569.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,191.40 : 311,795.02 = 141,269.20 : x
  2. Step 2: Convert to fraction form
    208,191.40/311,795.02 = 141,269.20/x
  3. Step 3: Cross multiply
    208,191.40x = 311,795.02 × 141,269.20
  4. Step 4: Simplify right side
    208,191.40x = 44,047,033,039.38
  5. Step 5: Solve for x
    x = 44,047,033,039.38/208,191.40
  6. Step 6: Final answer
    x = 211,569.90

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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.