Finding the Fourth Proportional to 225,280.99, 310,887.00 and 121,915.00
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Solution
The fourth proportional to 225,280.99, 310,887.00 and 121,915.00 is: 168,242.29
Step by Step Solution
- Step 1: Write the proportion equation
225,280.99 : 310,887.00 = 121,915.00 : x - Step 2: Convert to fraction form
225,280.99/310,887.00 = 121,915.00/x - Step 3: Cross multiply
225,280.99x = 310,887.00 × 121,915.00 - Step 4: Simplify right side
225,280.99x = 37,901,788,719.29 - Step 5: Solve for x
x = 37,901,788,719.29/225,280.99 - Step 6: Final answer
x = 168,242.29
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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.