Finding the Fourth Proportional to 421,119.42, 581,248.08 and 239,938.26
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Solution
The fourth proportional to 421,119.42, 581,248.08 and 239,938.26 is: 331,173.64
Step by Step Solution
- Step 1: Write the proportion equation
421,119.42 : 581,248.08 = 239,938.26 : x - Step 2: Convert to fraction form
421,119.42/581,248.08 = 239,938.26/x - Step 3: Cross multiply
421,119.42x = 581,248.08 × 239,938.26 - Step 4: Simplify right side
421,119.42x = 139,463,652,943.54 - Step 5: Solve for x
x = 139,463,652,943.54/421,119.42 - Step 6: Final answer
x = 331,173.64
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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.