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Finding the Fourth Proportional to 388,352.07, 582,559.70 and 107,869.32

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Solution

The fourth proportional to 388,352.07, 582,559.70 and 107,869.32 is: 161,812.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,352.07 : 582,559.70 = 107,869.32 : x
  2. Step 2: Convert to fraction form
    388,352.07/582,559.70 = 107,869.32/x
  3. Step 3: Cross multiply
    388,352.07x = 582,559.70 × 107,869.32
  4. Step 4: Simplify right side
    388,352.07x = 62,840,318,159.06
  5. Step 5: Solve for x
    x = 62,840,318,159.06/388,352.07
  6. Step 6: Final answer
    x = 161,812.75

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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.