Finding the Fourth Proportional to 291,968.70, 402,917.67 and 157,832.70
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Solution
The fourth proportional to 291,968.70, 402,917.67 and 157,832.70 is: 217,809.59
Step by Step Solution
- Step 1: Write the proportion equation
291,968.70 : 402,917.67 = 157,832.70 : x - Step 2: Convert to fraction form
291,968.70/402,917.67 = 157,832.70/x - Step 3: Cross multiply
291,968.70x = 402,917.67 × 157,832.70 - Step 4: Simplify right side
291,968.70x = 63,593,583,733.81 - Step 5: Solve for x
x = 63,593,583,733.81/291,968.70 - Step 6: Final answer
x = 217,809.59
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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.