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Finding the Fourth Proportional to 201,742.60, 302,657.10 and 61,515.40

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Solution

The fourth proportional to 201,742.60, 302,657.10 and 61,515.40 is: 92,286.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,742.60 : 302,657.10 = 61,515.40 : x
  2. Step 2: Convert to fraction form
    201,742.60/302,657.10 = 61,515.40/x
  3. Step 3: Cross multiply
    201,742.60x = 302,657.10 × 61,515.40
  4. Step 4: Simplify right side
    201,742.60x = 18,618,072,569.34
  5. Step 5: Solve for x
    x = 18,618,072,569.34/201,742.60
  6. Step 6: Final answer
    x = 92,286.27

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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.