Finding the Fourth Proportional to 423,366.80, 634,013.40 and 201,491.60
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Solution
The fourth proportional to 423,366.80, 634,013.40 and 201,491.60 is: 301,743.96
Step by Step Solution
- Step 1: Write the proportion equation
423,366.80 : 634,013.40 = 201,491.60 : x - Step 2: Convert to fraction form
423,366.80/634,013.40 = 201,491.60/x - Step 3: Cross multiply
423,366.80x = 634,013.40 × 201,491.60 - Step 4: Simplify right side
423,366.80x = 127,748,374,387.44 - Step 5: Solve for x
x = 127,748,374,387.44/423,366.80 - Step 6: Final answer
x = 301,743.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.