Finding the Fourth Proportional to 282,643.80, 423,965.70 and 268,865.70
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Solution
The fourth proportional to 282,643.80, 423,965.70 and 268,865.70 is: 403,298.55
Step by Step Solution
- Step 1: Write the proportion equation
282,643.80 : 423,965.70 = 268,865.70 : x - Step 2: Convert to fraction form
282,643.80/423,965.70 = 268,865.70/x - Step 3: Cross multiply
282,643.80x = 423,965.70 × 268,865.70 - Step 4: Simplify right side
282,643.80x = 113,989,834,706.49 - Step 5: Solve for x
x = 113,989,834,706.49/282,643.80 - Step 6: Final answer
x = 403,298.55
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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.