Finding the Fourth Proportional to 346,805.31, 478,526.36 and 219,391.23
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Solution
The fourth proportional to 346,805.31, 478,526.36 and 219,391.23 is: 302,718.80
Step by Step Solution
- Step 1: Write the proportion equation
346,805.31 : 478,526.36 = 219,391.23 : x - Step 2: Convert to fraction form
346,805.31/478,526.36 = 219,391.23/x - Step 3: Cross multiply
346,805.31x = 478,526.36 × 219,391.23 - Step 4: Simplify right side
346,805.31x = 104,984,485,610.87 - Step 5: Solve for x
x = 104,984,485,610.87/346,805.31 - Step 6: Final answer
x = 302,718.80
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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.