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Finding the Fourth Proportional to 388,095.10, 582,101.68 and 103,814.34

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Solution

The fourth proportional to 388,095.10, 582,101.68 and 103,814.34 is: 155,710.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,095.10 : 582,101.68 = 103,814.34 : x
  2. Step 2: Convert to fraction form
    388,095.10/582,101.68 = 103,814.34/x
  3. Step 3: Cross multiply
    388,095.10x = 582,101.68 × 103,814.34
  4. Step 4: Simplify right side
    388,095.10x = 60,430,501,722.09
  5. Step 5: Solve for x
    x = 60,430,501,722.09/388,095.10
  6. Step 6: Final answer
    x = 155,710.55

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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.