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Finding the Fourth Proportional to 210,689.20, 316,033.80 and 202,524.40

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Solution

The fourth proportional to 210,689.20, 316,033.80 and 202,524.40 is: 303,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,689.20 : 316,033.80 = 202,524.40 : x
  2. Step 2: Convert to fraction form
    210,689.20/316,033.80 = 202,524.40/x
  3. Step 3: Cross multiply
    210,689.20x = 316,033.80 × 202,524.40
  4. Step 4: Simplify right side
    210,689.20x = 64,004,555,724.72
  5. Step 5: Solve for x
    x = 64,004,555,724.72/210,689.20
  6. Step 6: Final answer
    x = 303,786.60

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