Finding the Fourth Proportional to 331,555.77, 497,430.68 and 106,911.65
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Solution
The fourth proportional to 331,555.77, 497,430.68 and 106,911.65 is: 160,398.75
Step by Step Solution
- Step 1: Write the proportion equation
331,555.77 : 497,430.68 = 106,911.65 : x - Step 2: Convert to fraction form
331,555.77/497,430.68 = 106,911.65/x - Step 3: Cross multiply
331,555.77x = 497,430.68 × 106,911.65 - Step 4: Simplify right side
331,555.77x = 53,181,131,737.71 - Step 5: Solve for x
x = 53,181,131,737.71/331,555.77 - Step 6: Final answer
x = 160,398.75
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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.