Finding the Fourth Proportional to 286,709.68, 395,669.51 and 157,657.98
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Solution
The fourth proportional to 286,709.68, 395,669.51 and 157,657.98 is: 217,573.59
Step by Step Solution
- Step 1: Write the proportion equation
286,709.68 : 395,669.51 = 157,657.98 : x - Step 2: Convert to fraction form
286,709.68/395,669.51 = 157,657.98/x - Step 3: Cross multiply
286,709.68x = 395,669.51 × 157,657.98 - Step 4: Simplify right side
286,709.68x = 62,380,455,694.19 - Step 5: Solve for x
x = 62,380,455,694.19/286,709.68 - Step 6: Final answer
x = 217,573.59
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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.