Finding the Fourth Proportional to 409,686.84, 565,322.18 and 228,385.08
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Solution
The fourth proportional to 409,686.84, 565,322.18 and 228,385.08 is: 315,145.96
Step by Step Solution
- Step 1: Write the proportion equation
409,686.84 : 565,322.18 = 228,385.08 : x - Step 2: Convert to fraction form
409,686.84/565,322.18 = 228,385.08/x - Step 3: Cross multiply
409,686.84x = 565,322.18 × 228,385.08 - Step 4: Simplify right side
409,686.84x = 129,111,151,305.07 - Step 5: Solve for x
x = 129,111,151,305.07/409,686.84 - Step 6: Final answer
x = 315,145.96
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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.