Finding the Fourth Proportional to 374,676.18, 517,114.35 and 278,518.74
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Solution
The fourth proportional to 374,676.18, 517,114.35 and 278,518.74 is: 384,401.37
Step by Step Solution
- Step 1: Write the proportion equation
374,676.18 : 517,114.35 = 278,518.74 : x - Step 2: Convert to fraction form
374,676.18/517,114.35 = 278,518.74/x - Step 3: Cross multiply
374,676.18x = 517,114.35 × 278,518.74 - Step 4: Simplify right side
374,676.18x = 144,026,037,197.92 - Step 5: Solve for x
x = 144,026,037,197.92/374,676.18 - Step 6: Final answer
x = 384,401.37
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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.