Finding the Fourth Proportional to 284,468.99, 392,533.76 and 157,136.99
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Solution
The fourth proportional to 284,468.99, 392,533.76 and 157,136.99 is: 216,830.57
Step by Step Solution
- Step 1: Write the proportion equation
284,468.99 : 392,533.76 = 157,136.99 : x - Step 2: Convert to fraction form
284,468.99/392,533.76 = 157,136.99/x - Step 3: Cross multiply
284,468.99x = 392,533.76 × 157,136.99 - Step 4: Simplify right side
284,468.99x = 61,681,571,949.96 - Step 5: Solve for x
x = 61,681,571,949.96/284,468.99 - Step 6: Final answer
x = 216,830.57
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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.