Finding the Fourth Proportional to 316,664.71, 436,992.84 and 173,424.71
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Solution
The fourth proportional to 316,664.71, 436,992.84 and 173,424.71 is: 239,323.66
Step by Step Solution
- Step 1: Write the proportion equation
316,664.71 : 436,992.84 = 173,424.71 : x - Step 2: Convert to fraction form
316,664.71/436,992.84 = 173,424.71/x - Step 3: Cross multiply
316,664.71x = 436,992.84 × 173,424.71 - Step 4: Simplify right side
316,664.71x = 75,785,357,641.56 - Step 5: Solve for x
x = 75,785,357,641.56/316,664.71 - Step 6: Final answer
x = 239,323.66
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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.