Home / 287,028.35-430,328.05-198,027.89

Finding the Fourth Proportional to 287,028.35, 430,328.05 and 198,027.89

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Solution

The fourth proportional to 287,028.35, 430,328.05 and 198,027.89 is: 296,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,028.35 : 430,328.05 = 198,027.89 : x
  2. Step 2: Convert to fraction form
    287,028.35/430,328.05 = 198,027.89/x
  3. Step 3: Cross multiply
    287,028.35x = 430,328.05 × 198,027.89
  4. Step 4: Simplify right side
    287,028.35x = 85,216,953,102.60
  5. Step 5: Solve for x
    x = 85,216,953,102.60/287,028.35
  6. Step 6: Final answer
    x = 296,893.86

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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.