Finding the Fourth Proportional to 157,895.20, 236,497.20 and 137,159.20
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Solution
The fourth proportional to 157,895.20, 236,497.20 and 137,159.20 is: 205,438.59
Step by Step Solution
- Step 1: Write the proportion equation
157,895.20 : 236,497.20 = 137,159.20 : x - Step 2: Convert to fraction form
157,895.20/236,497.20 = 137,159.20/x - Step 3: Cross multiply
157,895.20x = 236,497.20 × 137,159.20 - Step 4: Simplify right side
157,895.20x = 32,437,766,754.24 - Step 5: Solve for x
x = 32,437,766,754.24/157,895.20 - Step 6: Final answer
x = 205,438.59
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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.