Finding the Fourth Proportional to 411,565.20, 617,464.68 and 131,104.08
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Solution
The fourth proportional to 411,565.20, 617,464.68 and 131,104.08 is: 196,693.35
Step by Step Solution
- Step 1: Write the proportion equation
411,565.20 : 617,464.68 = 131,104.08 : x - Step 2: Convert to fraction form
411,565.20/617,464.68 = 131,104.08/x - Step 3: Cross multiply
411,565.20x = 617,464.68 × 131,104.08 - Step 4: Simplify right side
411,565.20x = 80,952,138,803.89 - Step 5: Solve for x
x = 80,952,138,803.89/411,565.20 - Step 6: Final answer
x = 196,693.35
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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.