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Finding the Fourth Proportional to 270,402.78, 373,114.40 and 155,659.27

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Solution

The fourth proportional to 270,402.78, 373,114.40 and 155,659.27 is: 214,785.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,402.78 : 373,114.40 = 155,659.27 : x
  2. Step 2: Convert to fraction form
    270,402.78/373,114.40 = 155,659.27/x
  3. Step 3: Cross multiply
    270,402.78x = 373,114.40 × 155,659.27
  4. Step 4: Simplify right side
    270,402.78x = 58,078,714,994.58
  5. Step 5: Solve for x
    x = 58,078,714,994.58/270,402.78
  6. Step 6: Final answer
    x = 214,785.94

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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.