Home / 287,576.45-431,556.62-100,587.93

Finding the Fourth Proportional to 287,576.45, 431,556.62 and 100,587.93

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Solution

The fourth proportional to 287,576.45, 431,556.62 and 100,587.93 is: 150,949.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,576.45 : 431,556.62 = 100,587.93 : x
  2. Step 2: Convert to fraction form
    287,576.45/431,556.62 = 100,587.93/x
  3. Step 3: Cross multiply
    287,576.45x = 431,556.62 × 100,587.93
  4. Step 4: Simplify right side
    287,576.45x = 43,409,386,580.66
  5. Step 5: Solve for x
    x = 43,409,386,580.66/287,576.45
  6. Step 6: Final answer
    x = 150,949.03

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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.