Finding the Fourth Proportional to 409,996.08, 565,781.76 and 240,343.20
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Solution
The fourth proportional to 409,996.08, 565,781.76 and 240,343.20 is: 331,666.09
Step by Step Solution
- Step 1: Write the proportion equation
409,996.08 : 565,781.76 = 240,343.20 : x - Step 2: Convert to fraction form
409,996.08/565,781.76 = 240,343.20/x - Step 3: Cross multiply
409,996.08x = 565,781.76 × 240,343.20 - Step 4: Simplify right side
409,996.08x = 135,981,798,700.03 - Step 5: Solve for x
x = 135,981,798,700.03/409,996.08 - Step 6: Final answer
x = 331,666.09
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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.