Finding the Fourth Proportional to 153,251.29, 211,468.20 and 85,252.19
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Solution
The fourth proportional to 153,251.29, 211,468.20 and 85,252.19 is: 117,637.69
Step by Step Solution
- Step 1: Write the proportion equation
153,251.29 : 211,468.20 = 85,252.19 : x - Step 2: Convert to fraction form
153,251.29/211,468.20 = 85,252.19/x - Step 3: Cross multiply
153,251.29x = 211,468.20 × 85,252.19 - Step 4: Simplify right side
153,251.29x = 18,028,127,165.36 - Step 5: Solve for x
x = 18,028,127,165.36/153,251.29 - Step 6: Final answer
x = 117,637.69
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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.