Finding the Fourth Proportional to 421,530.18, 581,726.79 and 240,269.46
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Solution
The fourth proportional to 421,530.18, 581,726.79 and 240,269.46 is: 331,580.49
Step by Step Solution
- Step 1: Write the proportion equation
421,530.18 : 581,726.79 = 240,269.46 : x - Step 2: Convert to fraction form
421,530.18/581,726.79 = 240,269.46/x - Step 3: Cross multiply
421,530.18x = 581,726.79 × 240,269.46 - Step 4: Simplify right side
421,530.18x = 139,771,181,700.83 - Step 5: Solve for x
x = 139,771,181,700.83/421,530.18 - Step 6: Final answer
x = 331,580.49
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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.