Finding the Fourth Proportional to 286,722.24, 395,686.83 and 157,670.56
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Solution
The fourth proportional to 286,722.24, 395,686.83 and 157,670.56 is: 217,590.95
Step by Step Solution
- Step 1: Write the proportion equation
286,722.24 : 395,686.83 = 157,670.56 : x - Step 2: Convert to fraction form
286,722.24/395,686.83 = 157,670.56/x - Step 3: Cross multiply
286,722.24x = 395,686.83 × 157,670.56 - Step 4: Simplify right side
286,722.24x = 62,388,164,070.72 - Step 5: Solve for x
x = 62,388,164,070.72/286,722.24 - Step 6: Final answer
x = 217,590.95
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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.