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Finding the Fourth Proportional to 230,967.80, 346,605.30 and 131,127.80

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Solution

The fourth proportional to 230,967.80, 346,605.30 and 131,127.80 is: 196,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,967.80 : 346,605.30 = 131,127.80 : x
  2. Step 2: Convert to fraction form
    230,967.80/346,605.30 = 131,127.80/x
  3. Step 3: Cross multiply
    230,967.80x = 346,605.30 × 131,127.80
  4. Step 4: Simplify right side
    230,967.80x = 45,449,590,457.34
  5. Step 5: Solve for x
    x = 45,449,590,457.34/230,967.80
  6. Step 6: Final answer
    x = 196,778.90

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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.