Finding the Fourth Proportional to 205,811.12, 283,747.08 and 148,402.40
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Solution
The fourth proportional to 205,811.12, 283,747.08 and 148,402.40 is: 204,598.99
Step by Step Solution
- Step 1: Write the proportion equation
205,811.12 : 283,747.08 = 148,402.40 : x - Step 2: Convert to fraction form
205,811.12/283,747.08 = 148,402.40/x - Step 3: Cross multiply
205,811.12x = 283,747.08 × 148,402.40 - Step 4: Simplify right side
205,811.12x = 42,108,747,664.99 - Step 5: Solve for x
x = 42,108,747,664.99/205,811.12 - Step 6: Final answer
x = 204,598.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.