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Finding the Fourth Proportional to 265,656.82, 398,268.08 and 123,590.65

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Solution

The fourth proportional to 265,656.82, 398,268.08 and 123,590.65 is: 185,284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,656.82 : 398,268.08 = 123,590.65 : x
  2. Step 2: Convert to fraction form
    265,656.82/398,268.08 = 123,590.65/x
  3. Step 3: Cross multiply
    265,656.82x = 398,268.08 × 123,590.65
  4. Step 4: Simplify right side
    265,656.82x = 49,222,210,881.45
  5. Step 5: Solve for x
    x = 49,222,210,881.45/265,656.82
  6. Step 6: Final answer
    x = 185,284.95

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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.