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Finding the Fourth Proportional to 310,315.54, 465,472.62 and 82,611.21

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Solution

The fourth proportional to 310,315.54, 465,472.62 and 82,611.21 is: 123,916.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,315.54 : 465,472.62 = 82,611.21 : x
  2. Step 2: Convert to fraction form
    310,315.54/465,472.62 = 82,611.21/x
  3. Step 3: Cross multiply
    310,315.54x = 465,472.62 × 82,611.21
  4. Step 4: Simplify right side
    310,315.54x = 38,453,257,451.02
  5. Step 5: Solve for x
    x = 38,453,257,451.02/310,315.54
  6. Step 6: Final answer
    x = 123,916.64

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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.