Finding the Fourth Proportional to 240,354.99, 360,749.16 and 128,128.68
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Solution
The fourth proportional to 240,354.99, 360,749.16 and 128,128.68 is: 192,308.53
Step by Step Solution
- Step 1: Write the proportion equation
240,354.99 : 360,749.16 = 128,128.68 : x - Step 2: Convert to fraction form
240,354.99/360,749.16 = 128,128.68/x - Step 3: Cross multiply
240,354.99x = 360,749.16 × 128,128.68 - Step 4: Simplify right side
240,354.99x = 46,222,313,681.91 - Step 5: Solve for x
x = 46,222,313,681.91/240,354.99 - Step 6: Final answer
x = 192,308.53
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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.