Finding the Fourth Proportional to 279,252.80, 385,352.57 and 156,733.79
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Solution
The fourth proportional to 279,252.80, 385,352.57 and 156,733.79 is: 216,283.48
Step by Step Solution
- Step 1: Write the proportion equation
279,252.80 : 385,352.57 = 156,733.79 : x - Step 2: Convert to fraction form
279,252.80/385,352.57 = 156,733.79/x - Step 3: Cross multiply
279,252.80x = 385,352.57 × 156,733.79 - Step 4: Simplify right side
279,252.80x = 60,397,766,071.91 - Step 5: Solve for x
x = 60,397,766,071.91/279,252.80 - Step 6: Final answer
x = 216,283.48
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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.