Finding the Fourth Proportional to 421,162.68, 581,203.14 and 230,176.02
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Solution
The fourth proportional to 421,162.68, 581,203.14 and 230,176.02 is: 317,642.17
Step by Step Solution
- Step 1: Write the proportion equation
421,162.68 : 581,203.14 = 230,176.02 : x - Step 2: Convert to fraction form
421,162.68/581,203.14 = 230,176.02/x - Step 3: Cross multiply
421,162.68x = 581,203.14 × 230,176.02 - Step 4: Simplify right side
421,162.68x = 133,779,025,576.70 - Step 5: Solve for x
x = 133,779,025,576.70/421,162.68 - Step 6: Final answer
x = 317,642.17
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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.