Home / 388,365.93-582,569.65-122,147.20

Finding the Fourth Proportional to 388,365.93, 582,569.65 and 122,147.20

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Solution

The fourth proportional to 388,365.93, 582,569.65 and 122,147.20 is: 183,227.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,365.93 : 582,569.65 = 122,147.20 : x
  2. Step 2: Convert to fraction form
    388,365.93/582,569.65 = 122,147.20/x
  3. Step 3: Cross multiply
    388,365.93x = 582,569.65 × 122,147.20
  4. Step 4: Simplify right side
    388,365.93x = 71,159,251,552.48
  5. Step 5: Solve for x
    x = 71,159,251,552.48/388,365.93
  6. Step 6: Final answer
    x = 183,227.33

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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.