Finding the Fourth Proportional to 153,623.09, 230,434.65 and 42,815.09
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Solution
The fourth proportional to 153,623.09, 230,434.65 and 42,815.09 is: 64,222.63
Step by Step Solution
- Step 1: Write the proportion equation
153,623.09 : 230,434.65 = 42,815.09 : x - Step 2: Convert to fraction form
153,623.09/230,434.65 = 42,815.09/x - Step 3: Cross multiply
153,623.09x = 230,434.65 × 42,815.09 - Step 4: Simplify right side
153,623.09x = 9,866,079,126.70 - Step 5: Solve for x
x = 9,866,079,126.70/153,623.09 - Step 6: Final answer
x = 64,222.63
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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.