Finding the Fourth Proportional to 157,513.84, 235,266.72 and 142,497.92
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Solution
The fourth proportional to 157,513.84, 235,266.72 and 142,497.92 is: 212,838.56
Step by Step Solution
- Step 1: Write the proportion equation
157,513.84 : 235,266.72 = 142,497.92 : x - Step 2: Convert to fraction form
157,513.84/235,266.72 = 142,497.92/x - Step 3: Cross multiply
157,513.84x = 235,266.72 × 142,497.92 - Step 4: Simplify right side
157,513.84x = 33,525,018,245.22 - Step 5: Solve for x
x = 33,525,018,245.22/157,513.84 - Step 6: Final answer
x = 212,838.56
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.