Finding the Fourth Proportional to 389,116.41, 583,851.96 and 199,709.79
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Solution
The fourth proportional to 389,116.41, 583,851.96 and 199,709.79 is: 299,655.70
Step by Step Solution
- Step 1: Write the proportion equation
389,116.41 : 583,851.96 = 199,709.79 : x - Step 2: Convert to fraction form
389,116.41/583,851.96 = 199,709.79/x - Step 3: Cross multiply
389,116.41x = 583,851.96 × 199,709.79 - Step 4: Simplify right side
389,116.41x = 116,600,950,133.24 - Step 5: Solve for x
x = 116,600,950,133.24/389,116.41 - Step 6: Final answer
x = 299,655.70
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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.