Finding the Fourth Proportional to 152,354.09, 210,228.94 and 85,286.09
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Solution
The fourth proportional to 152,354.09, 210,228.94 and 85,286.09 is: 117,683.77
Step by Step Solution
- Step 1: Write the proportion equation
152,354.09 : 210,228.94 = 85,286.09 : x - Step 2: Convert to fraction form
152,354.09/210,228.94 = 85,286.09/x - Step 3: Cross multiply
152,354.09x = 210,228.94 × 85,286.09 - Step 4: Simplify right side
152,354.09x = 17,929,604,297.44 - Step 5: Solve for x
x = 17,929,604,297.44/152,354.09 - Step 6: Final answer
x = 117,683.77
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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.