Finding the Fourth Proportional to 415,800.96, 623,711.16 and 135,340.08
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Solution
The fourth proportional to 415,800.96, 623,711.16 and 135,340.08 is: 203,013.28
Step by Step Solution
- Step 1: Write the proportion equation
415,800.96 : 623,711.16 = 135,340.08 : x - Step 2: Convert to fraction form
415,800.96/623,711.16 = 135,340.08/x - Step 3: Cross multiply
415,800.96x = 623,711.16 × 135,340.08 - Step 4: Simplify right side
415,800.96x = 84,413,118,291.29 - Step 5: Solve for x
x = 84,413,118,291.29/415,800.96 - Step 6: Final answer
x = 203,013.28
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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.