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Finding the Fourth Proportional to 202,240.65, 280,271.71 and 199,386.62

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Solution

The fourth proportional to 202,240.65, 280,271.71 and 199,386.62 is: 276,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,240.65 : 280,271.71 = 199,386.62 : x
  2. Step 2: Convert to fraction form
    202,240.65/280,271.71 = 199,386.62/x
  3. Step 3: Cross multiply
    202,240.65x = 280,271.71 × 199,386.62
  4. Step 4: Simplify right side
    202,240.65x = 55,882,428,938.52
  5. Step 5: Solve for x
    x = 55,882,428,938.52/202,240.65
  6. Step 6: Final answer
    x = 276,316.50

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.