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Finding the Fourth Proportional to 388,580.93, 582,924.44 and 135,802.77

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Solution

The fourth proportional to 388,580.93, 582,924.44 and 135,802.77 is: 203,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,580.93 : 582,924.44 = 135,802.77 : x
  2. Step 2: Convert to fraction form
    388,580.93/582,924.44 = 135,802.77/x
  3. Step 3: Cross multiply
    388,580.93x = 582,924.44 × 135,802.77
  4. Step 4: Simplify right side
    388,580.93x = 79,162,753,652.70
  5. Step 5: Solve for x
    x = 79,162,753,652.70/388,580.93
  6. Step 6: Final answer
    x = 203,722.69

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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.