Finding the Fourth Proportional to 340,346.70, 469,052.81 and 318,749.74
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Solution
The fourth proportional to 340,346.70, 469,052.81 and 318,749.74 is: 439,288.70
Step by Step Solution
- Step 1: Write the proportion equation
340,346.70 : 469,052.81 = 318,749.74 : x - Step 2: Convert to fraction form
340,346.70/469,052.81 = 318,749.74/x - Step 3: Cross multiply
340,346.70x = 469,052.81 × 318,749.74 - Step 4: Simplify right side
340,346.70x = 149,510,460,858.01 - Step 5: Solve for x
x = 149,510,460,858.01/340,346.70 - Step 6: Final answer
x = 439,288.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.