Finding the Fourth Proportional to 153,533.44, 211,839.06 and 86,465.44
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Solution
The fourth proportional to 153,533.44, 211,839.06 and 86,465.44 is: 119,301.42
Step by Step Solution
- Step 1: Write the proportion equation
153,533.44 : 211,839.06 = 86,465.44 : x - Step 2: Convert to fraction form
153,533.44/211,839.06 = 86,465.44/x - Step 3: Cross multiply
153,533.44x = 211,839.06 × 86,465.44 - Step 4: Simplify right side
153,533.44x = 18,316,757,532.09 - Step 5: Solve for x
x = 18,316,757,532.09/153,533.44 - Step 6: Final answer
x = 119,301.42
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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.