Finding the Fourth Proportional to 291,718.99, 402,572.16 and 164,399.14
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Solution
The fourth proportional to 291,718.99, 402,572.16 and 164,399.14 is: 226,870.79
Step by Step Solution
- Step 1: Write the proportion equation
291,718.99 : 402,572.16 = 164,399.14 : x - Step 2: Convert to fraction form
291,718.99/402,572.16 = 164,399.14/x - Step 3: Cross multiply
291,718.99x = 402,572.16 × 164,399.14 - Step 4: Simplify right side
291,718.99x = 66,182,516,891.94 - Step 5: Solve for x
x = 66,182,516,891.94/291,718.99 - Step 6: Final answer
x = 226,870.79
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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.