Finding the Fourth Proportional to 299,929.62, 413,903.73 and 163,965.21
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Solution
The fourth proportional to 299,929.62, 413,903.73 and 163,965.21 is: 226,272.46
Step by Step Solution
- Step 1: Write the proportion equation
299,929.62 : 413,903.73 = 163,965.21 : x - Step 2: Convert to fraction form
299,929.62/413,903.73 = 163,965.21/x - Step 3: Cross multiply
299,929.62x = 413,903.73 × 163,965.21 - Step 4: Simplify right side
299,929.62x = 67,865,812,009.23 - Step 5: Solve for x
x = 67,865,812,009.23/299,929.62 - Step 6: Final answer
x = 226,272.46
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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.