Finding the Fourth Proportional to 329,817.65, 455,158.51 and 186,574.82
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Solution
The fourth proportional to 329,817.65, 455,158.51 and 186,574.82 is: 257,478.99
Step by Step Solution
- Step 1: Write the proportion equation
329,817.65 : 455,158.51 = 186,574.82 : x - Step 2: Convert to fraction form
329,817.65/455,158.51 = 186,574.82/x - Step 3: Cross multiply
329,817.65x = 455,158.51 × 186,574.82 - Step 4: Simplify right side
329,817.65x = 84,921,114,332.49 - Step 5: Solve for x
x = 84,921,114,332.49/329,817.65 - Step 6: Final answer
x = 257,478.99
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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.