Finding the Fourth Proportional to 459,235.10, 689,166.12 and 159,712.70
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Solution
The fourth proportional to 459,235.10, 689,166.12 and 159,712.70 is: 239,678.06
Step by Step Solution
- Step 1: Write the proportion equation
459,235.10 : 689,166.12 = 159,712.70 : x - Step 2: Convert to fraction form
459,235.10/689,166.12 = 159,712.70/x - Step 3: Cross multiply
459,235.10x = 689,166.12 × 159,712.70 - Step 4: Simplify right side
459,235.10x = 110,068,578,926.82 - Step 5: Solve for x
x = 110,068,578,926.82/459,235.10 - Step 6: Final answer
x = 239,678.06
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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.