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Finding the Fourth Proportional to 388,566.10, 582,888.03 and 108,083.35

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Solution

The fourth proportional to 388,566.10, 582,888.03 and 108,083.35 is: 162,135.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,566.10 : 582,888.03 = 108,083.35 : x
  2. Step 2: Convert to fraction form
    388,566.10/582,888.03 = 108,083.35/x
  3. Step 3: Cross multiply
    388,566.10x = 582,888.03 × 108,083.35
  4. Step 4: Simplify right side
    388,566.10x = 63,000,490,957.30
  5. Step 5: Solve for x
    x = 63,000,490,957.30/388,566.10
  6. Step 6: Final answer
    x = 162,135.84

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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.