Finding the Fourth Proportional to 427,577.70, 641,215.35 and 147,029.70
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Solution
The fourth proportional to 427,577.70, 641,215.35 and 147,029.70 is: 220,492.56
Step by Step Solution
- Step 1: Write the proportion equation
427,577.70 : 641,215.35 = 147,029.70 : x - Step 2: Convert to fraction form
427,577.70/641,215.35 = 147,029.70/x - Step 3: Cross multiply
427,577.70x = 641,215.35 × 147,029.70 - Step 4: Simplify right side
427,577.70x = 94,277,700,545.90 - Step 5: Solve for x
x = 94,277,700,545.90/427,577.70 - Step 6: Final answer
x = 220,492.56
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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.