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Finding the Fourth Proportional to 388,485.51, 582,727.41 and 122,269.29

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Solution

The fourth proportional to 388,485.51, 582,727.41 and 122,269.29 is: 183,403.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,485.51 : 582,727.41 = 122,269.29 : x
  2. Step 2: Convert to fraction form
    388,485.51/582,727.41 = 122,269.29/x
  3. Step 3: Cross multiply
    388,485.51x = 582,727.41 × 122,269.29
  4. Step 4: Simplify right side
    388,485.51x = 71,249,666,684.24
  5. Step 5: Solve for x
    x = 71,249,666,684.24/388,485.51
  6. Step 6: Final answer
    x = 183,403.67

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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.