Finding the Fourth Proportional to 232,356.24, 320,638.32 and 128,985.12
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Solution
The fourth proportional to 232,356.24, 320,638.32 and 128,985.12 is: 177,992.09
Step by Step Solution
- Step 1: Write the proportion equation
232,356.24 : 320,638.32 = 128,985.12 : x - Step 2: Convert to fraction form
232,356.24/320,638.32 = 128,985.12/x - Step 3: Cross multiply
232,356.24x = 320,638.32 × 128,985.12 - Step 4: Simplify right side
232,356.24x = 41,357,572,181.80 - Step 5: Solve for x
x = 41,357,572,181.80/232,356.24 - Step 6: Final answer
x = 177,992.09
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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.