Finding the Fourth Proportional to 165,072.60, 246,952.80 and 143,129.70
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Solution
The fourth proportional to 165,072.60, 246,952.80 and 143,129.70 is: 214,125.66
Step by Step Solution
- Step 1: Write the proportion equation
165,072.60 : 246,952.80 = 143,129.70 : x - Step 2: Convert to fraction form
165,072.60/246,952.80 = 143,129.70/x - Step 3: Cross multiply
165,072.60x = 246,952.80 × 143,129.70 - Step 4: Simplify right side
165,072.60x = 35,346,280,178.16 - Step 5: Solve for x
x = 35,346,280,178.16/165,072.60 - Step 6: Final answer
x = 214,125.66
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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.