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Finding the Fourth Proportional to 352,610, 486,809.48 and 214,840.90

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Solution

The fourth proportional to 352,610, 486,809.48 and 214,840.90 is: 296,606.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,610 : 486,809.48 = 214,840.90 : x
  2. Step 2: Convert to fraction form
    352,610/486,809.48 = 214,840.90/x
  3. Step 3: Cross multiply
    352,610x = 486,809.48 × 214,840.90
  4. Step 4: Simplify right side
    352,610x = 104,586,586,811.73
  5. Step 5: Solve for x
    x = 104,586,586,811.73/352,610
  6. Step 6: Final answer
    x = 296,606.98

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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.