Finding the Fourth Proportional to 210,189.18, 290,061.06 and 134,737.68
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Solution
The fourth proportional to 210,189.18, 290,061.06 and 134,737.68 is: 185,937.99
Step by Step Solution
- Step 1: Write the proportion equation
210,189.18 : 290,061.06 = 134,737.68 : x - Step 2: Convert to fraction form
210,189.18/290,061.06 = 134,737.68/x - Step 3: Cross multiply
210,189.18x = 290,061.06 × 134,737.68 - Step 4: Simplify right side
210,189.18x = 39,082,154,282.74 - Step 5: Solve for x
x = 39,082,154,282.74/210,189.18 - Step 6: Final answer
x = 185,937.99
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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.