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Finding the Fourth Proportional to 254,645.60, 382,051.20 and 121,508.60

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Solution

The fourth proportional to 254,645.60, 382,051.20 and 121,508.60 is: 182,302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,645.60 : 382,051.20 = 121,508.60 : x
  2. Step 2: Convert to fraction form
    254,645.60/382,051.20 = 121,508.60/x
  3. Step 3: Cross multiply
    254,645.60x = 382,051.20 × 121,508.60
  4. Step 4: Simplify right side
    254,645.60x = 46,422,506,440.32
  5. Step 5: Solve for x
    x = 46,422,506,440.32/254,645.60
  6. Step 6: Final answer
    x = 182,302.41

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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.