Home / 388,455.54-582,484.59-177,913.05

Finding the Fourth Proportional to 388,455.54, 582,484.59 and 177,913.05

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Solution

The fourth proportional to 388,455.54, 582,484.59 and 177,913.05 is: 266,778.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,455.54 : 582,484.59 = 177,913.05 : x
  2. Step 2: Convert to fraction form
    388,455.54/582,484.59 = 177,913.05/x
  3. Step 3: Cross multiply
    388,455.54x = 582,484.59 × 177,913.05
  4. Step 4: Simplify right side
    388,455.54x = 103,631,609,984.90
  5. Step 5: Solve for x
    x = 103,631,609,984.90/388,455.54
  6. Step 6: Final answer
    x = 266,778.56

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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.