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Finding the Fourth Proportional to 388,522.81, 582,877.54 and 148,632.79

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Solution

The fourth proportional to 388,522.81, 582,877.54 and 148,632.79 is: 222,984.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,522.81 : 582,877.54 = 148,632.79 : x
  2. Step 2: Convert to fraction form
    388,522.81/582,877.54 = 148,632.79/x
  3. Step 3: Cross multiply
    388,522.81x = 582,877.54 × 148,632.79
  4. Step 4: Simplify right side
    388,522.81x = 86,634,714,998.54
  5. Step 5: Solve for x
    x = 86,634,714,998.54/388,522.81
  6. Step 6: Final answer
    x = 222,984.89

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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.