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Finding the Fourth Proportional to 355,463.98, 490,539.18 and 194,319.16

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Solution

The fourth proportional to 355,463.98, 490,539.18 and 194,319.16 is: 268,159.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,463.98 : 490,539.18 = 194,319.16 : x
  2. Step 2: Convert to fraction form
    355,463.98/490,539.18 = 194,319.16/x
  3. Step 3: Cross multiply
    355,463.98x = 490,539.18 × 194,319.16
  4. Step 4: Simplify right side
    355,463.98x = 95,321,161,404.69
  5. Step 5: Solve for x
    x = 95,321,161,404.69/355,463.98
  6. Step 6: Final answer
    x = 268,159.83

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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.