Finding the Fourth Proportional to 313,435.16, 470,149.50 and 76,779.08
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Solution
The fourth proportional to 313,435.16, 470,149.50 and 76,779.08 is: 115,167.83
Step by Step Solution
- Step 1: Write the proportion equation
313,435.16 : 470,149.50 = 76,779.08 : x - Step 2: Convert to fraction form
313,435.16/470,149.50 = 76,779.08/x - Step 3: Cross multiply
313,435.16x = 470,149.50 × 76,779.08 - Step 4: Simplify right side
313,435.16x = 36,097,646,072.46 - Step 5: Solve for x
x = 36,097,646,072.46/313,435.16 - Step 6: Final answer
x = 115,167.83
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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.