Finding the Fourth Proportional to 153,312.26, 211,574.14 and 86,244.26
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Solution
The fourth proportional to 153,312.26, 211,574.14 and 86,244.26 is: 119,018.89
Step by Step Solution
- Step 1: Write the proportion equation
153,312.26 : 211,574.14 = 86,244.26 : x - Step 2: Convert to fraction form
153,312.26/211,574.14 = 86,244.26/x - Step 3: Cross multiply
153,312.26x = 211,574.14 × 86,244.26 - Step 4: Simplify right side
153,312.26x = 18,247,055,139.44 - Step 5: Solve for x
x = 18,247,055,139.44/153,312.26 - Step 6: Final answer
x = 119,018.89
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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.