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Finding the Fourth Proportional to 395,580, 593,444.40 and 158,941.60

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Solution

The fourth proportional to 395,580, 593,444.40 and 158,941.60 is: 238,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,580 : 593,444.40 = 158,941.60 : x
  2. Step 2: Convert to fraction form
    395,580/593,444.40 = 158,941.60/x
  3. Step 3: Cross multiply
    395,580x = 593,444.40 × 158,941.60
  4. Step 4: Simplify right side
    395,580x = 94,323,002,447.04
  5. Step 5: Solve for x
    x = 94,323,002,447.04/395,580
  6. Step 6: Final answer
    x = 238,442.29

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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.