Finding the Fourth Proportional to 291,949.14, 402,889.62 and 157,813.14
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Solution
The fourth proportional to 291,949.14, 402,889.62 and 157,813.14 is: 217,782.03
Step by Step Solution
- Step 1: Write the proportion equation
291,949.14 : 402,889.62 = 157,813.14 : x - Step 2: Convert to fraction form
291,949.14/402,889.62 = 157,813.14/x - Step 3: Cross multiply
291,949.14x = 402,889.62 × 157,813.14 - Step 4: Simplify right side
291,949.14x = 63,581,276,005.61 - Step 5: Solve for x
x = 63,581,276,005.61/291,949.14 - Step 6: Final answer
x = 217,782.03
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1.5x scale
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.