Finding the Fourth Proportional to 415,752.90, 623,694.69 and 135,204.54
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Solution
The fourth proportional to 415,752.90, 623,694.69 and 135,204.54 is: 202,828.06
Step by Step Solution
- Step 1: Write the proportion equation
415,752.90 : 623,694.69 = 135,204.54 : x - Step 2: Convert to fraction form
415,752.90/623,694.69 = 135,204.54/x - Step 3: Cross multiply
415,752.90x = 623,694.69 × 135,204.54 - Step 4: Simplify right side
415,752.90x = 84,326,353,661.89 - Step 5: Solve for x
x = 84,326,353,661.89/415,752.90 - Step 6: Final answer
x = 202,828.06
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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.