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Finding the Fourth Proportional to 305,673.35, 458,300.89 and 155,623.28

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Solution

The fourth proportional to 305,673.35, 458,300.89 and 155,623.28 is: 233,328.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,673.35 : 458,300.89 = 155,623.28 : x
  2. Step 2: Convert to fraction form
    305,673.35/458,300.89 = 155,623.28/x
  3. Step 3: Cross multiply
    305,673.35x = 458,300.89 × 155,623.28
  4. Step 4: Simplify right side
    305,673.35x = 71,322,284,756.36
  5. Step 5: Solve for x
    x = 71,322,284,756.36/305,673.35
  6. Step 6: Final answer
    x = 233,328.44

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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.