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Finding the Fourth Proportional to 155,980.21, 233,961.07 and 43,657.93

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Solution

The fourth proportional to 155,980.21, 233,961.07 and 43,657.93 is: 65,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,980.21 : 233,961.07 = 43,657.93 : x
  2. Step 2: Convert to fraction form
    155,980.21/233,961.07 = 43,657.93/x
  3. Step 3: Cross multiply
    155,980.21x = 233,961.07 × 43,657.93
  4. Step 4: Simplify right side
    155,980.21x = 10,214,256,016.79
  5. Step 5: Solve for x
    x = 10,214,256,016.79/155,980.21
  6. Step 6: Final answer
    x = 65,484.31

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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.