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Finding the Fourth Proportional to 355,462.98, 490,537.80 and 194,318.16

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Solution

The fourth proportional to 355,462.98, 490,537.80 and 194,318.16 is: 268,158.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,462.98 : 490,537.80 = 194,318.16 : x
  2. Step 2: Convert to fraction form
    355,462.98/490,537.80 = 194,318.16/x
  3. Step 3: Cross multiply
    355,462.98x = 490,537.80 × 194,318.16
  4. Step 4: Simplify right side
    355,462.98x = 95,320,402,706.45
  5. Step 5: Solve for x
    x = 95,320,402,706.45/355,462.98
  6. Step 6: Final answer
    x = 268,158.45

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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.