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Finding the Fourth Proportional to 201,495.61, 302,178.12 and 66,529.36

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Solution

The fourth proportional to 201,495.61, 302,178.12 and 66,529.36 is: 99,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,495.61 : 302,178.12 = 66,529.36 : x
  2. Step 2: Convert to fraction form
    201,495.61/302,178.12 = 66,529.36/x
  3. Step 3: Cross multiply
    201,495.61x = 302,178.12 × 66,529.36
  4. Step 4: Simplify right side
    201,495.61x = 20,103,716,929.60
  5. Step 5: Solve for x
    x = 20,103,716,929.60/201,495.61
  6. Step 6: Final answer
    x = 99,772.48

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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.