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Finding the Third Proportional to 255,403.50 and 385,048.50

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Solution

The third proportional to 255,403.50 and 385,048.50 is: 580,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,403.50 : 385,048.50 = 385,048.50 : x
  2. Step 2: Convert to fraction form
    255,403.50/385,048.50 = 385,048.50/x
  3. Step 3: Cross multiply
    255,403.50x = 385,048.50 × 385,048.50
  4. Step 4: Simplify right side
    255,403.50x = 148,262,347,352.25
  5. Step 5: Solve for x
    x = 148,262,347,352.25/255,403.50
  6. Step 6: Final answer
    x = 580,502.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.