Finding the Fourth Proportional to 229,637.16, 316,904.58 and 129,036.84
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Solution
The fourth proportional to 229,637.16, 316,904.58 and 129,036.84 is: 178,073.82
Step by Step Solution
- Step 1: Write the proportion equation
229,637.16 : 316,904.58 = 129,036.84 : x - Step 2: Convert to fraction form
229,637.16/316,904.58 = 129,036.84/x - Step 3: Cross multiply
229,637.16x = 316,904.58 × 129,036.84 - Step 4: Simplify right side
229,637.16x = 40,892,365,584.73 - Step 5: Solve for x
x = 40,892,365,584.73/229,637.16 - Step 6: Final answer
x = 178,073.82
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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.