Finding the Fourth Proportional to 438,769.68, 658,154.48 and 106,345.68
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Solution
The fourth proportional to 438,769.68, 658,154.48 and 106,345.68 is: 159,518.51
Step by Step Solution
- Step 1: Write the proportion equation
438,769.68 : 658,154.48 = 106,345.68 : x - Step 2: Convert to fraction form
438,769.68/658,154.48 = 106,345.68/x - Step 3: Cross multiply
438,769.68x = 658,154.48 × 106,345.68 - Step 4: Simplify right side
438,769.68x = 69,991,885,720.65 - Step 5: Solve for x
x = 69,991,885,720.65/438,769.68 - Step 6: Final answer
x = 159,518.51
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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.