Finding the Fourth Proportional to 320,781.64, 442,639.84 and 184,860.12
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Solution
The fourth proportional to 320,781.64, 442,639.84 and 184,860.12 is: 255,084.59
Step by Step Solution
- Step 1: Write the proportion equation
320,781.64 : 442,639.84 = 184,860.12 : x - Step 2: Convert to fraction form
320,781.64/442,639.84 = 184,860.12/x - Step 3: Cross multiply
320,781.64x = 442,639.84 × 184,860.12 - Step 4: Simplify right side
320,781.64x = 81,826,453,939.18 - Step 5: Solve for x
x = 81,826,453,939.18/320,781.64 - Step 6: Final answer
x = 255,084.59
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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.