Finding the Fourth Proportional to 400,387.08, 600,731.28 and 208,141.68
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Solution
The fourth proportional to 400,387.08, 600,731.28 and 208,141.68 is: 312,290.84
Step by Step Solution
- Step 1: Write the proportion equation
400,387.08 : 600,731.28 = 208,141.68 : x - Step 2: Convert to fraction form
400,387.08/600,731.28 = 208,141.68/x - Step 3: Cross multiply
400,387.08x = 600,731.28 × 208,141.68 - Step 4: Simplify right side
400,387.08x = 125,037,217,847.75 - Step 5: Solve for x
x = 125,037,217,847.75/400,387.08 - Step 6: Final answer
x = 312,290.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.