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Finding the Fourth Proportional to 200,424.60, 300,639.42 and 60,175.08

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Solution

The fourth proportional to 200,424.60, 300,639.42 and 60,175.08 is: 90,263.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,424.60 : 300,639.42 = 60,175.08 : x
  2. Step 2: Convert to fraction form
    200,424.60/300,639.42 = 60,175.08/x
  3. Step 3: Cross multiply
    200,424.60x = 300,639.42 × 60,175.08
  4. Step 4: Simplify right side
    200,424.60x = 18,091,001,149.65
  5. Step 5: Solve for x
    x = 18,091,001,149.65/200,424.60
  6. Step 6: Final answer
    x = 90,263.38

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1.5x scale

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.