Finding the Fourth Proportional to 435,485.40, 653,228.16 and 135,991.62
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Solution
The fourth proportional to 435,485.40, 653,228.16 and 135,991.62 is: 203,987.45
Step by Step Solution
- Step 1: Write the proportion equation
435,485.40 : 653,228.16 = 135,991.62 : x - Step 2: Convert to fraction form
435,485.40/653,228.16 = 135,991.62/x - Step 3: Cross multiply
435,485.40x = 653,228.16 × 135,991.62 - Step 4: Simplify right side
435,485.40x = 88,833,555,708.02 - Step 5: Solve for x
x = 88,833,555,708.02/435,485.40 - Step 6: Final answer
x = 203,987.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.