Finding the Fourth Proportional to 167,038.69, 250,438.99 and 78,243.76
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Solution
The fourth proportional to 167,038.69, 250,438.99 and 78,243.76 is: 117,309.88
Step by Step Solution
- Step 1: Write the proportion equation
167,038.69 : 250,438.99 = 78,243.76 : x - Step 2: Convert to fraction form
167,038.69/250,438.99 = 78,243.76/x - Step 3: Cross multiply
167,038.69x = 250,438.99 × 78,243.76 - Step 4: Simplify right side
167,038.69x = 19,595,288,228.20 - Step 5: Solve for x
x = 19,595,288,228.20/167,038.69 - Step 6: Final answer
x = 117,309.88
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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.