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Finding the Fourth Proportional to 357,621, 493,525.67 and 196,486.48

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Solution

The fourth proportional to 357,621, 493,525.67 and 196,486.48 is: 271,156.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,621 : 493,525.67 = 196,486.48 : x
  2. Step 2: Convert to fraction form
    357,621/493,525.67 = 196,486.48/x
  3. Step 3: Cross multiply
    357,621x = 493,525.67 × 196,486.48
  4. Step 4: Simplify right side
    357,621x = 96,971,121,687.94
  5. Step 5: Solve for x
    x = 96,971,121,687.94/357,621
  6. Step 6: Final answer
    x = 271,156.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.