Finding the Fourth Proportional to 368,385.96, 508,215.53 and 211,138.84
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Solution
The fourth proportional to 368,385.96, 508,215.53 and 211,138.84 is: 291,281.56
Step by Step Solution
- Step 1: Write the proportion equation
368,385.96 : 508,215.53 = 211,138.84 : x - Step 2: Convert to fraction form
368,385.96/508,215.53 = 211,138.84/x - Step 3: Cross multiply
368,385.96x = 508,215.53 × 211,138.84 - Step 4: Simplify right side
368,385.96x = 107,304,037,474.19 - Step 5: Solve for x
x = 107,304,037,474.19/368,385.96 - Step 6: Final answer
x = 291,281.56
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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.