Finding the Fourth Proportional to 286,484.68, 395,348.70 and 159,172.12
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Solution
The fourth proportional to 286,484.68, 395,348.70 and 159,172.12 is: 219,657.44
Step by Step Solution
- Step 1: Write the proportion equation
286,484.68 : 395,348.70 = 159,172.12 : x - Step 2: Convert to fraction form
286,484.68/395,348.70 = 159,172.12/x - Step 3: Cross multiply
286,484.68x = 395,348.70 × 159,172.12 - Step 4: Simplify right side
286,484.68x = 62,928,490,718.24 - Step 5: Solve for x
x = 62,928,490,718.24/286,484.68 - Step 6: Final answer
x = 219,657.44
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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.