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Finding the Fourth Proportional to 308,776.19, 462,686.11 and 214,190.33

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Solution

The fourth proportional to 308,776.19, 462,686.11 and 214,190.33 is: 320,953.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,776.19 : 462,686.11 = 214,190.33 : x
  2. Step 2: Convert to fraction form
    308,776.19/462,686.11 = 214,190.33/x
  3. Step 3: Cross multiply
    308,776.19x = 462,686.11 × 214,190.33
  4. Step 4: Simplify right side
    308,776.19x = 99,102,887,738.41
  5. Step 5: Solve for x
    x = 99,102,887,738.41/308,776.19
  6. Step 6: Final answer
    x = 320,953.79

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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.