Finding the Fourth Proportional to 380,438.08, 524,914.36 and 225,311.04
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Solution
The fourth proportional to 380,438.08, 524,914.36 and 225,311.04 is: 310,875.82
Step by Step Solution
- Step 1: Write the proportion equation
380,438.08 : 524,914.36 = 225,311.04 : x - Step 2: Convert to fraction form
380,438.08/524,914.36 = 225,311.04/x - Step 3: Cross multiply
380,438.08x = 524,914.36 × 225,311.04 - Step 4: Simplify right side
380,438.08x = 118,269,000,362.53 - Step 5: Solve for x
x = 118,269,000,362.53/380,438.08 - Step 6: Final answer
x = 310,875.82
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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.