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Finding the Fourth Proportional to 201,317.80, 302,559.90 and 197,818.60

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Solution

The fourth proportional to 201,317.80, 302,559.90 and 197,818.60 is: 297,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,317.80 : 302,559.90 = 197,818.60 : x
  2. Step 2: Convert to fraction form
    201,317.80/302,559.90 = 197,818.60/x
  3. Step 3: Cross multiply
    201,317.80x = 302,559.90 × 197,818.60
  4. Step 4: Simplify right side
    201,317.80x = 59,851,975,834.14
  5. Step 5: Solve for x
    x = 59,851,975,834.14/201,317.80
  6. Step 6: Final answer
    x = 297,300.96

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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.