Finding the Fourth Proportional to 421,519.08, 581,708.64 and 230,545.40
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Solution
The fourth proportional to 421,519.08, 581,708.64 and 230,545.40 is: 318,159.38
Step by Step Solution
- Step 1: Write the proportion equation
421,519.08 : 581,708.64 = 230,545.40 : x - Step 2: Convert to fraction form
421,519.08/581,708.64 = 230,545.40/x - Step 3: Cross multiply
421,519.08x = 581,708.64 × 230,545.40 - Step 4: Simplify right side
421,519.08x = 134,110,251,092.26 - Step 5: Solve for x
x = 134,110,251,092.26/421,519.08 - Step 6: Final answer
x = 318,159.38
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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.