Finding the Fourth Proportional to 286,557.98, 395,430.80 and 157,493.66
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Solution
The fourth proportional to 286,557.98, 395,430.80 and 157,493.66 is: 217,330.69
Step by Step Solution
- Step 1: Write the proportion equation
286,557.98 : 395,430.80 = 157,493.66 : x - Step 2: Convert to fraction form
286,557.98/395,430.80 = 157,493.66/x - Step 3: Cross multiply
286,557.98x = 395,430.80 × 157,493.66 - Step 4: Simplify right side
286,557.98x = 62,277,841,204.11 - Step 5: Solve for x
x = 62,277,841,204.11/286,557.98 - Step 6: Final answer
x = 217,330.69
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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.