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Finding the Fourth Proportional to 253,886.48, 380,268.18 and 103,671.26

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Solution

The fourth proportional to 253,886.48, 380,268.18 and 103,671.26 is: 155,277.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,886.48 : 380,268.18 = 103,671.26 : x
  2. Step 2: Convert to fraction form
    253,886.48/380,268.18 = 103,671.26/x
  3. Step 3: Cross multiply
    253,886.48x = 380,268.18 × 103,671.26
  4. Step 4: Simplify right side
    253,886.48x = 39,422,881,358.51
  5. Step 5: Solve for x
    x = 39,422,881,358.51/253,886.48
  6. Step 6: Final answer
    x = 155,277.59

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1.5x scale

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.