Finding the Fourth Proportional to 284,303.06, 390,276.75 and 281,646.26
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Solution
The fourth proportional to 284,303.06, 390,276.75 and 281,646.26 is: 386,629.63
Step by Step Solution
- Step 1: Write the proportion equation
284,303.06 : 390,276.75 = 281,646.26 : x - Step 2: Convert to fraction form
284,303.06/390,276.75 = 281,646.26/x - Step 3: Cross multiply
284,303.06x = 390,276.75 × 281,646.26 - Step 4: Simplify right side
284,303.06x = 109,919,987,002.46 - Step 5: Solve for x
x = 109,919,987,002.46/284,303.06 - Step 6: Final answer
x = 386,629.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.