Home / 287,897.25-431,847.09-88,202.28

Finding the Fourth Proportional to 287,897.25, 431,847.09 and 88,202.28

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Solution

The fourth proportional to 287,897.25, 431,847.09 and 88,202.28 is: 132,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,897.25 : 431,847.09 = 88,202.28 : x
  2. Step 2: Convert to fraction form
    287,897.25/431,847.09 = 88,202.28/x
  3. Step 3: Cross multiply
    287,897.25x = 431,847.09 × 88,202.28
  4. Step 4: Simplify right side
    287,897.25x = 38,089,897,949.37
  5. Step 5: Solve for x
    x = 38,089,897,949.37/287,897.25
  6. Step 6: Final answer
    x = 132,303.79

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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.