Finding the Fourth Proportional to 411,211.80, 616,817.70 and 245,323.80
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Solution
The fourth proportional to 411,211.80, 616,817.70 and 245,323.80 is: 367,985.70
Step by Step Solution
- Step 1: Write the proportion equation
411,211.80 : 616,817.70 = 245,323.80 : x - Step 2: Convert to fraction form
411,211.80/616,817.70 = 245,323.80/x - Step 3: Cross multiply
411,211.80x = 616,817.70 × 245,323.80 - Step 4: Simplify right side
411,211.80x = 151,320,062,071.26 - Step 5: Solve for x
x = 151,320,062,071.26/411,211.80 - Step 6: Final answer
x = 367,985.70
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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.