Finding the Fourth Proportional to 329,837.13, 455,224.10 and 208,989.65
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Solution
The fourth proportional to 329,837.13, 455,224.10 and 208,989.65 is: 288,436.68
Step by Step Solution
- Step 1: Write the proportion equation
329,837.13 : 455,224.10 = 208,989.65 : x - Step 2: Convert to fraction form
329,837.13/455,224.10 = 208,989.65/x - Step 3: Cross multiply
329,837.13x = 455,224.10 × 208,989.65 - Step 4: Simplify right side
329,837.13x = 95,137,125,423.68 - Step 5: Solve for x
x = 95,137,125,423.68/329,837.13 - Step 6: Final answer
x = 288,436.68
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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.