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Finding the Fourth Proportional to 401,268.48, 553,858.56 and 250,275.84

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Solution

The fourth proportional to 401,268.48, 553,858.56 and 250,275.84 is: 345,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,268.48 : 553,858.56 = 250,275.84 : x
  2. Step 2: Convert to fraction form
    401,268.48/553,858.56 = 250,275.84/x
  3. Step 3: Cross multiply
    401,268.48x = 553,858.56 × 250,275.84
  4. Step 4: Simplify right side
    401,268.48x = 138,617,416,345.19
  5. Step 5: Solve for x
    x = 138,617,416,345.19/401,268.48
  6. Step 6: Final answer
    x = 345,448.06

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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.