Finding the Fourth Proportional to 286,444.48, 395,282.40 and 159,128.08
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Solution
The fourth proportional to 286,444.48, 395,282.40 and 159,128.08 is: 219,590.65
Step by Step Solution
- Step 1: Write the proportion equation
286,444.48 : 395,282.40 = 159,128.08 : x - Step 2: Convert to fraction form
286,444.48/395,282.40 = 159,128.08/x - Step 3: Cross multiply
286,444.48x = 395,282.40 × 159,128.08 - Step 4: Simplify right side
286,444.48x = 62,900,529,369.79 - Step 5: Solve for x
x = 62,900,529,369.79/286,444.48 - Step 6: Final answer
x = 219,590.65
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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.