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Finding the Fourth Proportional to 355,526.32, 490,630.98 and 194,381.56

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Solution

The fourth proportional to 355,526.32, 490,630.98 and 194,381.56 is: 268,249.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,526.32 : 490,630.98 = 194,381.56 : x
  2. Step 2: Convert to fraction form
    355,526.32/490,630.98 = 194,381.56/x
  3. Step 3: Cross multiply
    355,526.32x = 490,630.98 × 194,381.56
  4. Step 4: Simplify right side
    355,526.32x = 95,369,611,851.67
  5. Step 5: Solve for x
    x = 95,369,611,851.67/355,526.32
  6. Step 6: Final answer
    x = 268,249.09

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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.