Finding the Fourth Proportional to 325,948.70, 489,009.45 and 115,564.70
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Solution
The fourth proportional to 325,948.70, 489,009.45 and 115,564.70 is: 173,377.68
Step by Step Solution
- Step 1: Write the proportion equation
325,948.70 : 489,009.45 = 115,564.70 : x - Step 2: Convert to fraction form
325,948.70/489,009.45 = 115,564.70/x - Step 3: Cross multiply
325,948.70x = 489,009.45 × 115,564.70 - Step 4: Simplify right side
325,948.70x = 56,512,230,386.42 - Step 5: Solve for x
x = 56,512,230,386.42/325,948.70 - Step 6: Final answer
x = 173,377.68
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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.