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Finding the Fourth Proportional to 631,136.62, 946,713.30 and 210,412.63

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Solution

The fourth proportional to 631,136.62, 946,713.30 and 210,412.63 is: 315,621.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,136.62 : 946,713.30 = 210,412.63 : x
  2. Step 2: Convert to fraction form
    631,136.62/946,713.30 = 210,412.63/x
  3. Step 3: Cross multiply
    631,136.62x = 946,713.30 × 210,412.63
  4. Step 4: Simplify right side
    631,136.62x = 199,200,435,308.98
  5. Step 5: Solve for x
    x = 199,200,435,308.98/631,136.62
  6. Step 6: Final answer
    x = 315,621.74

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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.