Finding the Fourth Proportional to 210,427.20, 290,314.08 and 124,368.12
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Solution
The fourth proportional to 210,427.20, 290,314.08 and 124,368.12 is: 171,583.41
Step by Step Solution
- Step 1: Write the proportion equation
210,427.20 : 290,314.08 = 124,368.12 : x - Step 2: Convert to fraction form
210,427.20/290,314.08 = 124,368.12/x - Step 3: Cross multiply
210,427.20x = 290,314.08 × 124,368.12 - Step 4: Simplify right side
210,427.20x = 36,105,816,339.13 - Step 5: Solve for x
x = 36,105,816,339.13/210,427.20 - Step 6: Final answer
x = 171,583.41
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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.