Finding the Fourth Proportional to 225,918.14, 311,731.35 and 130,407.26
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Solution
The fourth proportional to 225,918.14, 311,731.35 and 130,407.26 is: 179,941.42
Step by Step Solution
- Step 1: Write the proportion equation
225,918.14 : 311,731.35 = 130,407.26 : x - Step 2: Convert to fraction form
225,918.14/311,731.35 = 130,407.26/x - Step 3: Cross multiply
225,918.14x = 311,731.35 × 130,407.26 - Step 4: Simplify right side
225,918.14x = 40,652,031,209.60 - Step 5: Solve for x
x = 40,652,031,209.60/225,918.14 - Step 6: Final answer
x = 179,941.42
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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.