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Finding the Fourth Proportional to 254,892.78, 382,339.14 and 121,368.21

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Solution

The fourth proportional to 254,892.78, 382,339.14 and 121,368.21 is: 182,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,892.78 : 382,339.14 = 121,368.21 : x
  2. Step 2: Convert to fraction form
    254,892.78/382,339.14 = 121,368.21/x
  3. Step 3: Cross multiply
    254,892.78x = 382,339.14 × 121,368.21
  4. Step 4: Simplify right side
    254,892.78x = 46,403,817,034.74
  5. Step 5: Solve for x
    x = 46,403,817,034.74/254,892.78
  6. Step 6: Final answer
    x = 182,052.30

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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.