Finding the Fourth Proportional to 346,382.33, 478,016.99 and 210,385.09
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Solution
The fourth proportional to 346,382.33, 478,016.99 and 210,385.09 is: 290,337.12
Step by Step Solution
- Step 1: Write the proportion equation
346,382.33 : 478,016.99 = 210,385.09 : x - Step 2: Convert to fraction form
346,382.33/478,016.99 = 210,385.09/x - Step 3: Cross multiply
346,382.33x = 478,016.99 × 210,385.09 - Step 4: Simplify right side
346,382.33x = 100,567,646,410.75 - Step 5: Solve for x
x = 100,567,646,410.75/346,382.33 - Step 6: Final answer
x = 290,337.12
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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.