Finding the Fourth Proportional to 423,557.36, 635,452.68 and 143,271.44
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Solution
The fourth proportional to 423,557.36, 635,452.68 and 143,271.44 is: 214,946.61
Step by Step Solution
- Step 1: Write the proportion equation
423,557.36 : 635,452.68 = 143,271.44 : x - Step 2: Convert to fraction form
423,557.36/635,452.68 = 143,271.44/x - Step 3: Cross multiply
423,557.36x = 635,452.68 × 143,271.44 - Step 4: Simplify right side
423,557.36x = 91,042,220,515.46 - Step 5: Solve for x
x = 91,042,220,515.46/423,557.36 - Step 6: Final answer
x = 214,946.61
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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.