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Finding the Fourth Proportional to 368,287.08, 508,231.14 and 207,142.08

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Solution

The fourth proportional to 368,287.08, 508,231.14 and 207,142.08 is: 285,853.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,287.08 : 508,231.14 = 207,142.08 : x
  2. Step 2: Convert to fraction form
    368,287.08/508,231.14 = 207,142.08/x
  3. Step 3: Cross multiply
    368,287.08x = 508,231.14 × 207,142.08
  4. Step 4: Simplify right side
    368,287.08x = 105,276,055,460.37
  5. Step 5: Solve for x
    x = 105,276,055,460.37/368,287.08
  6. Step 6: Final answer
    x = 285,853.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.