Finding the Fourth Proportional to 409,415.72, 614,234.14 and 125,098.48
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Solution
The fourth proportional to 409,415.72, 614,234.14 and 125,098.48 is: 187,681.50
Step by Step Solution
- Step 1: Write the proportion equation
409,415.72 : 614,234.14 = 125,098.48 : x - Step 2: Convert to fraction form
409,415.72/614,234.14 = 125,098.48/x - Step 3: Cross multiply
409,415.72x = 614,234.14 × 125,098.48 - Step 4: Simplify right side
409,415.72x = 76,839,757,278.11 - Step 5: Solve for x
x = 76,839,757,278.11/409,415.72 - Step 6: Final answer
x = 187,681.50
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1.5x scale
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.