Finding the Fourth Proportional to 153,328.98, 211,593.97 and 85,344.49
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Solution
The fourth proportional to 153,328.98, 211,593.97 and 85,344.49 is: 117,775.38
Step by Step Solution
- Step 1: Write the proportion equation
153,328.98 : 211,593.97 = 85,344.49 : x - Step 2: Convert to fraction form
153,328.98/211,593.97 = 85,344.49/x - Step 3: Cross multiply
153,328.98x = 211,593.97 × 85,344.49 - Step 4: Simplify right side
153,328.98x = 18,058,378,637.68 - Step 5: Solve for x
x = 18,058,378,637.68/153,328.98 - Step 6: Final answer
x = 117,775.38
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1.5x scale
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.