Finding the Fourth Proportional to 310,010.41, 427,790.70 and 174,018.08
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Solution
The fourth proportional to 310,010.41, 427,790.70 and 174,018.08 is: 240,131.66
Step by Step Solution
- Step 1: Write the proportion equation
310,010.41 : 427,790.70 = 174,018.08 : x - Step 2: Convert to fraction form
310,010.41/427,790.70 = 174,018.08/x - Step 3: Cross multiply
310,010.41x = 427,790.70 × 174,018.08 - Step 4: Simplify right side
310,010.41x = 74,443,316,122.17 - Step 5: Solve for x
x = 74,443,316,122.17/310,010.41 - Step 6: Final answer
x = 240,131.66
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1.5x scale
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.