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Finding the Fourth Proportional to 202,479.80, 303,719.70 and 108,001.40

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Solution

The fourth proportional to 202,479.80, 303,719.70 and 108,001.40 is: 162,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,479.80 : 303,719.70 = 108,001.40 : x
  2. Step 2: Convert to fraction form
    202,479.80/303,719.70 = 108,001.40/x
  3. Step 3: Cross multiply
    202,479.80x = 303,719.70 × 108,001.40
  4. Step 4: Simplify right side
    202,479.80x = 32,802,152,807.58
  5. Step 5: Solve for x
    x = 32,802,152,807.58/202,479.80
  6. Step 6: Final answer
    x = 162,002.10

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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.