Finding the Fourth Proportional to 215,327.12, 322,990.70 and 88,970.63
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Solution
The fourth proportional to 215,327.12, 322,990.70 and 88,970.63 is: 133,455.95
Step by Step Solution
- Step 1: Write the proportion equation
215,327.12 : 322,990.70 = 88,970.63 : x - Step 2: Convert to fraction form
215,327.12/322,990.70 = 88,970.63/x - Step 3: Cross multiply
215,327.12x = 322,990.70 × 88,970.63 - Step 4: Simplify right side
215,327.12x = 28,736,684,003.33 - Step 5: Solve for x
x = 28,736,684,003.33/215,327.12 - Step 6: Final answer
x = 133,455.95
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1.5x scale
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.