Finding the Fourth Proportional to 658,138.23, 987,207.35 and 159,502.23
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Solution
The fourth proportional to 658,138.23, 987,207.35 and 159,502.23 is: 239,253.35
Step by Step Solution
- Step 1: Write the proportion equation
658,138.23 : 987,207.35 = 159,502.23 : x - Step 2: Convert to fraction form
658,138.23/987,207.35 = 159,502.23/x - Step 3: Cross multiply
658,138.23x = 987,207.35 × 159,502.23 - Step 4: Simplify right side
658,138.23x = 157,461,772,999.88 - Step 5: Solve for x
x = 157,461,772,999.88/658,138.23 - Step 6: Final answer
x = 239,253.35
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Similar ratio
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1.5x scale
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.