Finding the Fourth Proportional to 150,907.24, 208,258.05 and 86,386.96
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Solution
The fourth proportional to 150,907.24, 208,258.05 and 86,386.96 is: 119,217.47
Step by Step Solution
- Step 1: Write the proportion equation
150,907.24 : 208,258.05 = 86,386.96 : x - Step 2: Convert to fraction form
150,907.24/208,258.05 = 86,386.96/x - Step 3: Cross multiply
150,907.24x = 208,258.05 × 86,386.96 - Step 4: Simplify right side
150,907.24x = 17,990,779,835.03 - Step 5: Solve for x
x = 17,990,779,835.03/150,907.24 - Step 6: Final answer
x = 119,217.47
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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.