Finding the Fourth Proportional to 153,015.75, 229,536.59 and 42,207.75
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Solution
The fourth proportional to 153,015.75, 229,536.59 and 42,207.75 is: 63,315.20
Step by Step Solution
- Step 1: Write the proportion equation
153,015.75 : 229,536.59 = 42,207.75 : x - Step 2: Convert to fraction form
153,015.75/229,536.59 = 42,207.75/x - Step 3: Cross multiply
153,015.75x = 229,536.59 × 42,207.75 - Step 4: Simplify right side
153,015.75x = 9,688,222,795.53 - Step 5: Solve for x
x = 9,688,222,795.53/153,015.75 - Step 6: Final answer
x = 63,315.20
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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.