Finding the Fourth Proportional to 338,840.20, 508,163.10 and 102,125.80
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Solution
The fourth proportional to 338,840.20, 508,163.10 and 102,125.80 is: 153,159.40
Step by Step Solution
- Step 1: Write the proportion equation
338,840.20 : 508,163.10 = 102,125.80 : x - Step 2: Convert to fraction form
338,840.20/508,163.10 = 102,125.80/x - Step 3: Cross multiply
338,840.20x = 508,163.10 × 102,125.80 - Step 4: Simplify right side
338,840.20x = 51,896,563,117.98 - Step 5: Solve for x
x = 51,896,563,117.98/338,840.20 - Step 6: Final answer
x = 153,159.40
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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.