Finding the Fourth Proportional to 338,700.98, 507,890.18 and 128,204.66
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Solution
The fourth proportional to 338,700.98, 507,890.18 and 128,204.66 is: 192,245.94
Step by Step Solution
- Step 1: Write the proportion equation
338,700.98 : 507,890.18 = 128,204.66 : x - Step 2: Convert to fraction form
338,700.98/507,890.18 = 128,204.66/x - Step 3: Cross multiply
338,700.98x = 507,890.18 × 128,204.66 - Step 4: Simplify right side
338,700.98x = 65,113,887,844.24 - Step 5: Solve for x
x = 65,113,887,844.24/338,700.98 - Step 6: Final answer
x = 192,245.94
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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.