Finding the Fourth Proportional to 285,972.02, 394,688.70 and 158,688.62
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Solution
The fourth proportional to 285,972.02, 394,688.70 and 158,688.62 is: 219,016.55
Step by Step Solution
- Step 1: Write the proportion equation
285,972.02 : 394,688.70 = 158,688.62 : x - Step 2: Convert to fraction form
285,972.02/394,688.70 = 158,688.62/x - Step 3: Cross multiply
285,972.02x = 394,688.70 × 158,688.62 - Step 4: Simplify right side
285,972.02x = 62,632,605,132.59 - Step 5: Solve for x
x = 62,632,605,132.59/285,972.02 - Step 6: Final answer
x = 219,016.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.