Finding the Fourth Proportional to 277,017.62, 415,539.16 and 84,878.28
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Solution
The fourth proportional to 277,017.62, 415,539.16 and 84,878.28 is: 127,321.32
Step by Step Solution
- Step 1: Write the proportion equation
277,017.62 : 415,539.16 = 84,878.28 : x - Step 2: Convert to fraction form
277,017.62/415,539.16 = 84,878.28/x - Step 3: Cross multiply
277,017.62x = 415,539.16 × 84,878.28 - Step 4: Simplify right side
277,017.62x = 35,270,248,961.25 - Step 5: Solve for x
x = 35,270,248,961.25/277,017.62 - Step 6: Final answer
x = 127,321.32
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1.5x scale
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.