Home / 328,669.60-492,716.40-223,146.40

Finding the Fourth Proportional to 328,669.60, 492,716.40 and 223,146.40

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Solution

The fourth proportional to 328,669.60, 492,716.40 and 223,146.40 is: 334,524.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,669.60 : 492,716.40 = 223,146.40 : x
  2. Step 2: Convert to fraction form
    328,669.60/492,716.40 = 223,146.40/x
  3. Step 3: Cross multiply
    328,669.60x = 492,716.40 × 223,146.40
  4. Step 4: Simplify right side
    328,669.60x = 109,947,890,880.96
  5. Step 5: Solve for x
    x = 109,947,890,880.96/328,669.60
  6. Step 6: Final answer
    x = 334,524.07

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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.