Finding the Fourth Proportional to 339,089.80, 508,634.70 and 102,407.80
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Solution
The fourth proportional to 339,089.80, 508,634.70 and 102,407.80 is: 153,611.70
Step by Step Solution
- Step 1: Write the proportion equation
339,089.80 : 508,634.70 = 102,407.80 : x - Step 2: Convert to fraction form
339,089.80/508,634.70 = 102,407.80/x - Step 3: Cross multiply
339,089.80x = 508,634.70 × 102,407.80 - Step 4: Simplify right side
339,089.80x = 52,088,160,630.66 - Step 5: Solve for x
x = 52,088,160,630.66/339,089.80 - Step 6: Final answer
x = 153,611.70
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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.