Finding the Fourth Proportional to 356,687.19, 492,248.40 and 211,579.02
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Solution
The fourth proportional to 356,687.19, 492,248.40 and 211,579.02 is: 291,990.96
Step by Step Solution
- Step 1: Write the proportion equation
356,687.19 : 492,248.40 = 211,579.02 : x - Step 2: Convert to fraction form
356,687.19/492,248.40 = 211,579.02/x - Step 3: Cross multiply
356,687.19x = 492,248.40 × 211,579.02 - Step 4: Simplify right side
356,687.19x = 104,149,434,068.57 - Step 5: Solve for x
x = 104,149,434,068.57/356,687.19 - Step 6: Final answer
x = 291,990.96
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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.