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Finding the Fourth Proportional to 388,527.93, 582,885.18 and 148,637.88

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Solution

The fourth proportional to 388,527.93, 582,885.18 and 148,637.88 is: 222,992.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,527.93 : 582,885.18 = 148,637.88 : x
  2. Step 2: Convert to fraction form
    388,527.93/582,885.18 = 148,637.88/x
  3. Step 3: Cross multiply
    388,527.93x = 582,885.18 × 148,637.88
  4. Step 4: Simplify right side
    388,527.93x = 86,638,817,438.62
  5. Step 5: Solve for x
    x = 86,638,817,438.62/388,527.93
  6. Step 6: Final answer
    x = 222,992.51

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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.