Finding the Fourth Proportional to 291,889.26, 402,807.89 and 157,753.26
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Solution
The fourth proportional to 291,889.26, 402,807.89 and 157,753.26 is: 217,699.88
Step by Step Solution
- Step 1: Write the proportion equation
291,889.26 : 402,807.89 = 157,753.26 : x - Step 2: Convert to fraction form
291,889.26/402,807.89 = 157,753.26/x - Step 3: Cross multiply
291,889.26x = 402,807.89 × 157,753.26 - Step 4: Simplify right side
291,889.26x = 63,544,257,801.22 - Step 5: Solve for x
x = 63,544,257,801.22/291,889.26 - Step 6: Final answer
x = 217,699.88
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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.