Finding the Fourth Proportional to 485,521.75, 728,282.63 and 153,097.75
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Solution
The fourth proportional to 485,521.75, 728,282.63 and 153,097.75 is: 229,646.63
Step by Step Solution
- Step 1: Write the proportion equation
485,521.75 : 728,282.63 = 153,097.75 : x - Step 2: Convert to fraction form
485,521.75/728,282.63 = 153,097.75/x - Step 3: Cross multiply
485,521.75x = 728,282.63 × 153,097.75 - Step 4: Simplify right side
485,521.75x = 111,498,432,017.08 - Step 5: Solve for x
x = 111,498,432,017.08/485,521.75 - Step 6: Final answer
x = 229,646.63
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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.