Finding the Fourth Proportional to 421,558.80, 581,766.12 and 240,298.08
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Solution
The fourth proportional to 421,558.80, 581,766.12 and 240,298.08 is: 331,619.89
Step by Step Solution
- Step 1: Write the proportion equation
421,558.80 : 581,766.12 = 240,298.08 : x - Step 2: Convert to fraction form
421,558.80/581,766.12 = 240,298.08/x - Step 3: Cross multiply
421,558.80x = 581,766.12 × 240,298.08 - Step 4: Simplify right side
421,558.80x = 139,797,281,645.05 - Step 5: Solve for x
x = 139,797,281,645.05/421,558.80 - Step 6: Final answer
x = 331,619.89
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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.