Home / 292,972.89-439,501.44-90,584.78

Finding the Fourth Proportional to 292,972.89, 439,501.44 and 90,584.78

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Solution

The fourth proportional to 292,972.89, 439,501.44 and 90,584.78 is: 135,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,972.89 : 439,501.44 = 90,584.78 : x
  2. Step 2: Convert to fraction form
    292,972.89/439,501.44 = 90,584.78/x
  3. Step 3: Cross multiply
    292,972.89x = 439,501.44 × 90,584.78
  4. Step 4: Simplify right side
    292,972.89x = 39,812,140,218.33
  5. Step 5: Solve for x
    x = 39,812,140,218.33/292,972.89
  6. Step 6: Final answer
    x = 135,890.19

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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.