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Finding the Fourth Proportional to 309,184.84, 463,173.25 and 213,104.98

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Solution

The fourth proportional to 309,184.84, 463,173.25 and 213,104.98 is: 319,241.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,184.84 : 463,173.25 = 213,104.98 : x
  2. Step 2: Convert to fraction form
    309,184.84/463,173.25 = 213,104.98/x
  3. Step 3: Cross multiply
    309,184.84x = 463,173.25 × 213,104.98
  4. Step 4: Simplify right side
    309,184.84x = 98,704,526,177.79
  5. Step 5: Solve for x
    x = 98,704,526,177.79/309,184.84
  6. Step 6: Final answer
    x = 319,241.16

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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.