Finding the Fourth Proportional to 346,521.87, 478,668.23 and 261,126.36
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Solution
The fourth proportional to 346,521.87, 478,668.23 and 261,126.36 is: 360,707.08
Step by Step Solution
- Step 1: Write the proportion equation
346,521.87 : 478,668.23 = 261,126.36 : x - Step 2: Convert to fraction form
346,521.87/478,668.23 = 261,126.36/x - Step 3: Cross multiply
346,521.87x = 478,668.23 × 261,126.36 - Step 4: Simplify right side
346,521.87x = 124,992,890,426.13 - Step 5: Solve for x
x = 124,992,890,426.13/346,521.87 - Step 6: Final answer
x = 360,707.08
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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.