Home / 258,051.60-387,077.40-199,002.60

Finding the Fourth Proportional to 258,051.60, 387,077.40 and 199,002.60

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Solution

The fourth proportional to 258,051.60, 387,077.40 and 199,002.60 is: 298,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,051.60 : 387,077.40 = 199,002.60 : x
  2. Step 2: Convert to fraction form
    258,051.60/387,077.40 = 199,002.60/x
  3. Step 3: Cross multiply
    258,051.60x = 387,077.40 × 199,002.60
  4. Step 4: Simplify right side
    258,051.60x = 77,029,409,001.24
  5. Step 5: Solve for x
    x = 77,029,409,001.24/258,051.60
  6. Step 6: Final answer
    x = 298,503.90

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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.