Finding the Fourth Proportional to 421,070.70, 581,070.60 and 230,079.99
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Solution
The fourth proportional to 421,070.70, 581,070.60 and 230,079.99 is: 317,506.58
Step by Step Solution
- Step 1: Write the proportion equation
421,070.70 : 581,070.60 = 230,079.99 : x - Step 2: Convert to fraction form
421,070.70/581,070.60 = 230,079.99/x - Step 3: Cross multiply
421,070.70x = 581,070.60 × 230,079.99 - Step 4: Simplify right side
421,070.70x = 133,692,717,837.29 - Step 5: Solve for x
x = 133,692,717,837.29/421,070.70 - Step 6: Final answer
x = 317,506.58
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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.