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Finding the Fourth Proportional to 201,953.09, 302,918.66 and 61,711.71

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Solution

The fourth proportional to 201,953.09, 302,918.66 and 61,711.71 is: 92,564.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,953.09 : 302,918.66 = 61,711.71 : x
  2. Step 2: Convert to fraction form
    201,953.09/302,918.66 = 61,711.71/x
  3. Step 3: Cross multiply
    201,953.09x = 302,918.66 × 61,711.71
  4. Step 4: Simplify right side
    201,953.09x = 18,693,628,422.37
  5. Step 5: Solve for x
    x = 18,693,628,422.37/201,953.09
  6. Step 6: Final answer
    x = 92,564.21

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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.