Finding the Fourth Proportional to 225,885.06, 311,669.06 and 135,206.55
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Solution
The fourth proportional to 225,885.06, 311,669.06 and 135,206.55 is: 186,553.72
Step by Step Solution
- Step 1: Write the proportion equation
225,885.06 : 311,669.06 = 135,206.55 : x - Step 2: Convert to fraction form
225,885.06/311,669.06 = 135,206.55/x - Step 3: Cross multiply
225,885.06x = 311,669.06 × 135,206.55 - Step 4: Simplify right side
225,885.06x = 42,139,697,668.31 - Step 5: Solve for x
x = 42,139,697,668.31/225,885.06 - Step 6: Final answer
x = 186,553.72
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1.5x scale
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.