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Finding the Fourth Proportional to 388,513.44, 582,803.16 and 108,030.69

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Solution

The fourth proportional to 388,513.44, 582,803.16 and 108,030.69 is: 162,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,513.44 : 582,803.16 = 108,030.69 : x
  2. Step 2: Convert to fraction form
    388,513.44/582,803.16 = 108,030.69/x
  3. Step 3: Cross multiply
    388,513.44x = 582,803.16 × 108,030.69
  4. Step 4: Simplify right side
    388,513.44x = 62,960,627,508.98
  5. Step 5: Solve for x
    x = 62,960,627,508.98/388,513.44
  6. Step 6: Final answer
    x = 162,055.21

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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.