Home / 328,722.28-492,788.58-118,213

Finding the Fourth Proportional to 328,722.28, 492,788.58 and 118,213

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Solution

The fourth proportional to 328,722.28, 492,788.58 and 118,213 is: 177,213.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,722.28 : 492,788.58 = 118,213 : x
  2. Step 2: Convert to fraction form
    328,722.28/492,788.58 = 118,213/x
  3. Step 3: Cross multiply
    328,722.28x = 492,788.58 × 118,213
  4. Step 4: Simplify right side
    328,722.28x = 58,254,016,407.54
  5. Step 5: Solve for x
    x = 58,254,016,407.54/328,722.28
  6. Step 6: Final answer
    x = 177,213.47

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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.