Finding the Fourth Proportional to 409,428.64, 565,053.08 and 228,170.08
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Solution
The fourth proportional to 409,428.64, 565,053.08 and 228,170.08 is: 314,897.87
Step by Step Solution
- Step 1: Write the proportion equation
409,428.64 : 565,053.08 = 228,170.08 : x - Step 2: Convert to fraction form
409,428.64/565,053.08 = 228,170.08/x - Step 3: Cross multiply
409,428.64x = 565,053.08 × 228,170.08 - Step 4: Simplify right side
409,428.64x = 128,928,206,467.85 - Step 5: Solve for x
x = 128,928,206,467.85/409,428.64 - Step 6: Final answer
x = 314,897.87
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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.