Finding the Fourth Proportional to 277,216.14, 382,557.75 and 156,357.06
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Solution
The fourth proportional to 277,216.14, 382,557.75 and 156,357.06 is: 215,772.45
Step by Step Solution
- Step 1: Write the proportion equation
277,216.14 : 382,557.75 = 156,357.06 : x - Step 2: Convert to fraction form
277,216.14/382,557.75 = 156,357.06/x - Step 3: Cross multiply
277,216.14x = 382,557.75 × 156,357.06 - Step 4: Simplify right side
277,216.14x = 59,815,605,070.22 - Step 5: Solve for x
x = 59,815,605,070.22/277,216.14 - Step 6: Final answer
x = 215,772.45
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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.