Finding the Fourth Proportional to 306,437.16, 459,553.68 and 128,911.08
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Solution
The fourth proportional to 306,437.16, 459,553.68 and 128,911.08 is: 193,323.69
Step by Step Solution
- Step 1: Write the proportion equation
306,437.16 : 459,553.68 = 128,911.08 : x - Step 2: Convert to fraction form
306,437.16/459,553.68 = 128,911.08/x - Step 3: Cross multiply
306,437.16x = 459,553.68 × 128,911.08 - Step 4: Simplify right side
306,437.16x = 59,241,561,206.77 - Step 5: Solve for x
x = 59,241,561,206.77/306,437.16 - Step 6: Final answer
x = 193,323.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.