Finding the Fourth Proportional to 644,651.12, 966,887.36 and 171,374.96
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Solution
The fourth proportional to 644,651.12, 966,887.36 and 171,374.96 is: 257,038.70
Step by Step Solution
- Step 1: Write the proportion equation
644,651.12 : 966,887.36 = 171,374.96 : x - Step 2: Convert to fraction form
644,651.12/966,887.36 = 171,374.96/x - Step 3: Cross multiply
644,651.12x = 966,887.36 × 171,374.96 - Step 4: Simplify right side
644,651.12x = 165,700,282,644.51 - Step 5: Solve for x
x = 165,700,282,644.51/644,651.12 - Step 6: Final answer
x = 257,038.70
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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.