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Finding the Fourth Proportional to 201,637.10, 302,110.05 and 131,480.30

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Solution

The fourth proportional to 201,637.10, 302,110.05 and 131,480.30 is: 196,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,637.10 : 302,110.05 = 131,480.30 : x
  2. Step 2: Convert to fraction form
    201,637.10/302,110.05 = 131,480.30/x
  3. Step 3: Cross multiply
    201,637.10x = 302,110.05 × 131,480.30
  4. Step 4: Simplify right side
    201,637.10x = 39,721,520,007.02
  5. Step 5: Solve for x
    x = 39,721,520,007.02/201,637.10
  6. Step 6: Final answer
    x = 196,995.10

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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.