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Finding the Fourth Proportional to 368,636.08, 508,685.37 and 205,280.25

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Solution

The fourth proportional to 368,636.08, 508,685.37 and 205,280.25 is: 283,268.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,636.08 : 508,685.37 = 205,280.25 : x
  2. Step 2: Convert to fraction form
    368,636.08/508,685.37 = 205,280.25/x
  3. Step 3: Cross multiply
    368,636.08x = 508,685.37 × 205,280.25
  4. Step 4: Simplify right side
    368,636.08x = 104,423,058,678.25
  5. Step 5: Solve for x
    x = 104,423,058,678.25/368,636.08
  6. Step 6: Final answer
    x = 283,268.69

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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.