Finding the Fourth Proportional to 212,809.99, 293,679.75 and 117,320.10
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Solution
The fourth proportional to 212,809.99, 293,679.75 and 117,320.10 is: 161,902.82
Step by Step Solution
- Step 1: Write the proportion equation
212,809.99 : 293,679.75 = 117,320.10 : x - Step 2: Convert to fraction form
212,809.99/293,679.75 = 117,320.10/x - Step 3: Cross multiply
212,809.99x = 293,679.75 × 117,320.10 - Step 4: Simplify right side
212,809.99x = 34,454,537,637.98 - Step 5: Solve for x
x = 34,454,537,637.98/212,809.99 - Step 6: Final answer
x = 161,902.82
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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.