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Finding the Fourth Proportional to 388,585.04, 582,878.64 and 108,102.56

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Solution

The fourth proportional to 388,585.04, 582,878.64 and 108,102.56 is: 162,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,585.04 : 582,878.64 = 108,102.56 : x
  2. Step 2: Convert to fraction form
    388,585.04/582,878.64 = 108,102.56/x
  3. Step 3: Cross multiply
    388,585.04x = 582,878.64 × 108,102.56
  4. Step 4: Simplify right side
    388,585.04x = 63,010,673,153.32
  5. Step 5: Solve for x
    x = 63,010,673,153.32/388,585.04
  6. Step 6: Final answer
    x = 162,154.14

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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.