Finding the Fourth Proportional to 310,302.30, 465,444.14 and 85,676.44
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Solution
The fourth proportional to 310,302.30, 465,444.14 and 85,676.44 is: 128,512.09
Step by Step Solution
- Step 1: Write the proportion equation
310,302.30 : 465,444.14 = 85,676.44 : x - Step 2: Convert to fraction form
310,302.30/465,444.14 = 85,676.44/x - Step 3: Cross multiply
310,302.30x = 465,444.14 × 85,676.44 - Step 4: Simplify right side
310,302.30x = 39,877,596,934.06 - Step 5: Solve for x
x = 39,877,596,934.06/310,302.30 - Step 6: Final answer
x = 128,512.09
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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.