Finding the Fourth Proportional to 286,688.68, 395,602.74 and 159,356.68
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Solution
The fourth proportional to 286,688.68, 395,602.74 and 159,356.68 is: 219,896.86
Step by Step Solution
- Step 1: Write the proportion equation
286,688.68 : 395,602.74 = 159,356.68 : x - Step 2: Convert to fraction form
286,688.68/395,602.74 = 159,356.68/x - Step 3: Cross multiply
286,688.68x = 395,602.74 × 159,356.68 - Step 4: Simplify right side
286,688.68x = 63,041,939,245.30 - Step 5: Solve for x
x = 63,041,939,245.30/286,688.68 - Step 6: Final answer
x = 219,896.86
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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.