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Finding the Fourth Proportional to 218,377.64, 325,606.86 and 214,391.84

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Solution

The fourth proportional to 218,377.64, 325,606.86 and 214,391.84 is: 319,663.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,377.64 : 325,606.86 = 214,391.84 : x
  2. Step 2: Convert to fraction form
    218,377.64/325,606.86 = 214,391.84/x
  3. Step 3: Cross multiply
    218,377.64x = 325,606.86 × 214,391.84
  4. Step 4: Simplify right side
    218,377.64x = 69,807,452,203.99
  5. Step 5: Solve for x
    x = 69,807,452,203.99/218,377.64
  6. Step 6: Final answer
    x = 319,663.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.