Home / 328,020.77-492,056.10-111,812.36

Finding the Fourth Proportional to 328,020.77, 492,056.10 and 111,812.36

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Solution

The fourth proportional to 328,020.77, 492,056.10 and 111,812.36 is: 167,727.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,020.77 : 492,056.10 = 111,812.36 : x
  2. Step 2: Convert to fraction form
    328,020.77/492,056.10 = 111,812.36/x
  3. Step 3: Cross multiply
    328,020.77x = 492,056.10 × 111,812.36
  4. Step 4: Simplify right side
    328,020.77x = 55,017,950,913.82
  5. Step 5: Solve for x
    x = 55,017,950,913.82/328,020.77
  6. Step 6: Final answer
    x = 167,727.04

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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.