Finding the Fourth Proportional to 202,948.84, 280,069.86 and 112,311.40
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Solution
The fourth proportional to 202,948.84, 280,069.86 and 112,311.40 is: 154,989.99
Step by Step Solution
- Step 1: Write the proportion equation
202,948.84 : 280,069.86 = 112,311.40 : x - Step 2: Convert to fraction form
202,948.84/280,069.86 = 112,311.40/x - Step 3: Cross multiply
202,948.84x = 280,069.86 × 112,311.40 - Step 4: Simplify right side
202,948.84x = 31,455,038,074.40 - Step 5: Solve for x
x = 31,455,038,074.40/202,948.84 - Step 6: Final answer
x = 154,989.99
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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.