Finding the Fourth Proportional to 406,430.54, 561,147.99 and 253,701.26
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Solution
The fourth proportional to 406,430.54, 561,147.99 and 253,701.26 is: 350,278.68
Step by Step Solution
- Step 1: Write the proportion equation
406,430.54 : 561,147.99 = 253,701.26 : x - Step 2: Convert to fraction form
406,430.54/561,147.99 = 253,701.26/x - Step 3: Cross multiply
406,430.54x = 561,147.99 × 253,701.26 - Step 4: Simplify right side
406,430.54x = 142,363,952,109.47 - Step 5: Solve for x
x = 142,363,952,109.47/406,430.54 - Step 6: Final answer
x = 350,278.68
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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.