Finding the Fourth Proportional to 430,841.18, 646,357.78 and 131,345.15
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Solution
The fourth proportional to 430,841.18, 646,357.78 and 131,345.15 is: 197,046.99
Step by Step Solution
- Step 1: Write the proportion equation
430,841.18 : 646,357.78 = 131,345.15 : x - Step 2: Convert to fraction form
430,841.18/646,357.78 = 131,345.15/x - Step 3: Cross multiply
430,841.18x = 646,357.78 × 131,345.15 - Step 4: Simplify right side
430,841.18x = 84,895,955,761.34 - Step 5: Solve for x
x = 84,895,955,761.34/430,841.18 - Step 6: Final answer
x = 197,046.99
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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.