Finding the Fourth Proportional to 198,312.92, 297,587.58 and 71,963.02
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Solution
The fourth proportional to 198,312.92, 297,587.58 and 71,963.02 is: 107,987.42
Step by Step Solution
- Step 1: Write the proportion equation
198,312.92 : 297,587.58 = 71,963.02 : x - Step 2: Convert to fraction form
198,312.92/297,587.58 = 71,963.02/x - Step 3: Cross multiply
198,312.92x = 297,587.58 × 71,963.02 - Step 4: Simplify right side
198,312.92x = 21,415,301,261.71 - Step 5: Solve for x
x = 21,415,301,261.71/198,312.92 - Step 6: Final answer
x = 107,987.42
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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.