Finding the Fourth Proportional to 191,288.12, 286,929.84 and 86,032.76
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Solution
The fourth proportional to 191,288.12, 286,929.84 and 86,032.76 is: 129,048.09
Step by Step Solution
- Step 1: Write the proportion equation
191,288.12 : 286,929.84 = 86,032.76 : x - Step 2: Convert to fraction form
191,288.12/286,929.84 = 86,032.76/x - Step 3: Cross multiply
191,288.12x = 286,929.84 × 86,032.76 - Step 4: Simplify right side
191,288.12x = 24,685,366,061.56 - Step 5: Solve for x
x = 24,685,366,061.56/191,288.12 - Step 6: Final answer
x = 129,048.09
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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.