Finding the Fourth Proportional to 316,215.48, 474,347.88 and 91,579.26
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Solution
The fourth proportional to 316,215.48, 474,347.88 and 91,579.26 is: 137,376.03
Step by Step Solution
- Step 1: Write the proportion equation
316,215.48 : 474,347.88 = 91,579.26 : x - Step 2: Convert to fraction form
316,215.48/474,347.88 = 91,579.26/x - Step 3: Cross multiply
316,215.48x = 474,347.88 × 91,579.26 - Step 4: Simplify right side
316,215.48x = 43,440,427,832.97 - Step 5: Solve for x
x = 43,440,427,832.97/316,215.48 - Step 6: Final answer
x = 137,376.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.