Finding the Fourth Proportional to 165,998.70, 249,030.45 and 71,228.70
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Solution
The fourth proportional to 165,998.70, 249,030.45 and 71,228.70 is: 106,856.95
Step by Step Solution
- Step 1: Write the proportion equation
165,998.70 : 249,030.45 = 71,228.70 : x - Step 2: Convert to fraction form
165,998.70/249,030.45 = 71,228.70/x - Step 3: Cross multiply
165,998.70x = 249,030.45 × 71,228.70 - Step 4: Simplify right side
165,998.70x = 17,738,115,213.92 - Step 5: Solve for x
x = 17,738,115,213.92/165,998.70 - Step 6: Final answer
x = 106,856.95
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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.