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Finding the Fourth Proportional to 258,485.77, 356,657.54 and 151,035.03

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Solution

The fourth proportional to 258,485.77, 356,657.54 and 151,035.03 is: 208,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,485.77 : 356,657.54 = 151,035.03 : x
  2. Step 2: Convert to fraction form
    258,485.77/356,657.54 = 151,035.03/x
  3. Step 3: Cross multiply
    258,485.77x = 356,657.54 × 151,035.03
  4. Step 4: Simplify right side
    258,485.77x = 53,867,782,253.63
  5. Step 5: Solve for x
    x = 53,867,782,253.63/258,485.77
  6. Step 6: Final answer
    x = 208,397.48

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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.