Finding the Fourth Proportional to 152,310.96, 228,459.56 and 39,988.53
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Solution
The fourth proportional to 152,310.96, 228,459.56 and 39,988.53 is: 59,980.99
Step by Step Solution
- Step 1: Write the proportion equation
152,310.96 : 228,459.56 = 39,988.53 : x - Step 2: Convert to fraction form
152,310.96/228,459.56 = 39,988.53/x - Step 3: Cross multiply
152,310.96x = 228,459.56 × 39,988.53 - Step 4: Simplify right side
152,310.96x = 9,135,761,768.90 - Step 5: Solve for x
x = 9,135,761,768.90/152,310.96 - Step 6: Final answer
x = 59,980.99
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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.