Finding the Fourth Proportional to 421,633.73, 581,854.35 and 230,647.07
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Solution
The fourth proportional to 421,633.73, 581,854.35 and 230,647.07 is: 318,292.84
Step by Step Solution
- Step 1: Write the proportion equation
421,633.73 : 581,854.35 = 230,647.07 : x - Step 2: Convert to fraction form
421,633.73/581,854.35 = 230,647.07/x - Step 3: Cross multiply
421,633.73x = 581,854.35 × 230,647.07 - Step 4: Simplify right side
421,633.73x = 134,202,996,931.75 - Step 5: Solve for x
x = 134,202,996,931.75/421,633.73 - Step 6: Final answer
x = 318,292.84
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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.