Finding the Fourth Proportional to 225,541.06, 311,246.55 and 123,572.99
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Solution
The fourth proportional to 225,541.06, 311,246.55 and 123,572.99 is: 170,530.67
Step by Step Solution
- Step 1: Write the proportion equation
225,541.06 : 311,246.55 = 123,572.99 : x - Step 2: Convert to fraction form
225,541.06/311,246.55 = 123,572.99/x - Step 3: Cross multiply
225,541.06x = 311,246.55 × 123,572.99 - Step 4: Simplify right side
225,541.06x = 38,461,667,588.80 - Step 5: Solve for x
x = 38,461,667,588.80/225,541.06 - Step 6: Final answer
x = 170,530.67
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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.