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Finding the Fourth Proportional to 363,728.64, 544,999.68 and 223,190.40

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Solution

The fourth proportional to 363,728.64, 544,999.68 and 223,190.40 is: 334,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,728.64 : 544,999.68 = 223,190.40 : x
  2. Step 2: Convert to fraction form
    363,728.64/544,999.68 = 223,190.40/x
  3. Step 3: Cross multiply
    363,728.64x = 544,999.68 × 223,190.40
  4. Step 4: Simplify right side
    363,728.64x = 121,638,696,579.07
  5. Step 5: Solve for x
    x = 121,638,696,579.07/363,728.64
  6. Step 6: Final answer
    x = 334,421.55

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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.