Finding the Fourth Proportional to 286,686.48, 395,602.99 and 157,617.97
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Solution
The fourth proportional to 286,686.48, 395,602.99 and 157,617.97 is: 217,499.41
Step by Step Solution
- Step 1: Write the proportion equation
286,686.48 : 395,602.99 = 157,617.97 : x - Step 2: Convert to fraction form
286,686.48/395,602.99 = 157,617.97/x - Step 3: Cross multiply
286,686.48x = 395,602.99 × 157,617.97 - Step 4: Simplify right side
286,686.48x = 62,354,140,209.73 - Step 5: Solve for x
x = 62,354,140,209.73/286,686.48 - Step 6: Final answer
x = 217,499.41
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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.