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Finding the Fourth Proportional to 202,065.40, 302,952.30 and 131,984.20

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Solution

The fourth proportional to 202,065.40, 302,952.30 and 131,984.20 is: 197,881.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,065.40 : 302,952.30 = 131,984.20 : x
  2. Step 2: Convert to fraction form
    202,065.40/302,952.30 = 131,984.20/x
  3. Step 3: Cross multiply
    202,065.40x = 302,952.30 × 131,984.20
  4. Step 4: Simplify right side
    202,065.40x = 39,984,916,953.66
  5. Step 5: Solve for x
    x = 39,984,916,953.66/202,065.40
  6. Step 6: Final answer
    x = 197,881.07

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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.