Finding the Fourth Proportional to 286,421.99, 395,262.58 and 157,368.79
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Solution
The fourth proportional to 286,421.99, 395,262.58 and 157,368.79 is: 217,169.05
Step by Step Solution
- Step 1: Write the proportion equation
286,421.99 : 395,262.58 = 157,368.79 : x - Step 2: Convert to fraction form
286,421.99/395,262.58 = 157,368.79/x - Step 3: Cross multiply
286,421.99x = 395,262.58 × 157,368.79 - Step 4: Simplify right side
286,421.99x = 62,201,992,691.83 - Step 5: Solve for x
x = 62,201,992,691.83/286,421.99 - Step 6: Final answer
x = 217,169.05
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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.