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Finding the Fourth Proportional to 388,483.75, 582,724.81 and 122,267.53

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Solution

The fourth proportional to 388,483.75, 582,724.81 and 122,267.53 is: 183,401.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,483.75 : 582,724.81 = 122,267.53 : x
  2. Step 2: Convert to fraction form
    388,483.75/582,724.81 = 122,267.53/x
  3. Step 3: Cross multiply
    388,483.75x = 582,724.81 × 122,267.53
  4. Step 4: Simplify right side
    388,483.75x = 71,248,319,663.46
  5. Step 5: Solve for x
    x = 71,248,319,663.46/388,483.75
  6. Step 6: Final answer
    x = 183,401.03

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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.