Finding the Fourth Proportional to 216,419.19, 298,652.91 and 120,926.67
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Solution
The fourth proportional to 216,419.19, 298,652.91 and 120,926.67 is: 166,875.69
Step by Step Solution
- Step 1: Write the proportion equation
216,419.19 : 298,652.91 = 120,926.67 : x - Step 2: Convert to fraction form
216,419.19/298,652.91 = 120,926.67/x - Step 3: Cross multiply
216,419.19x = 298,652.91 × 120,926.67 - Step 4: Simplify right side
216,419.19x = 36,115,101,892.11 - Step 5: Solve for x
x = 36,115,101,892.11/216,419.19 - Step 6: Final answer
x = 166,875.69
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1.5x scale
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.