Finding the Fourth Proportional to 157,479.84, 236,218.80 and 57,646.98
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Solution
The fourth proportional to 157,479.84, 236,218.80 and 57,646.98 is: 86,470.12
Step by Step Solution
- Step 1: Write the proportion equation
157,479.84 : 236,218.80 = 57,646.98 : x - Step 2: Convert to fraction form
157,479.84/236,218.80 = 57,646.98/x - Step 3: Cross multiply
157,479.84x = 236,218.80 × 57,646.98 - Step 4: Simplify right side
157,479.84x = 13,617,300,439.22 - Step 5: Solve for x
x = 13,617,300,439.22/157,479.84 - Step 6: Final answer
x = 86,470.12
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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.