Home / 288,766.72-433,199.40-89,083.36

Finding the Fourth Proportional to 288,766.72, 433,199.40 and 89,083.36

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Solution

The fourth proportional to 288,766.72, 433,199.40 and 89,083.36 is: 133,640.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,766.72 : 433,199.40 = 89,083.36 : x
  2. Step 2: Convert to fraction form
    288,766.72/433,199.40 = 89,083.36/x
  3. Step 3: Cross multiply
    288,766.72x = 433,199.40 × 89,083.36
  4. Step 4: Simplify right side
    288,766.72x = 38,590,858,101.98
  5. Step 5: Solve for x
    x = 38,590,858,101.98/288,766.72
  6. Step 6: Final answer
    x = 133,640.26

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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.