Finding the Fourth Proportional to 153,328.54, 211,593.36 and 85,344.05
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Solution
The fourth proportional to 153,328.54, 211,593.36 and 85,344.05 is: 117,774.77
Step by Step Solution
- Step 1: Write the proportion equation
153,328.54 : 211,593.36 = 85,344.05 : x - Step 2: Convert to fraction form
153,328.54/211,593.36 = 85,344.05/x - Step 3: Cross multiply
153,328.54x = 211,593.36 × 85,344.05 - Step 4: Simplify right side
153,328.54x = 18,058,233,868.79 - Step 5: Solve for x
x = 18,058,233,868.79/153,328.54 - Step 6: Final answer
x = 117,774.77
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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.