Finding the Fourth Proportional to 442,936.10, 664,509.97 and 143,417.00
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Solution
The fourth proportional to 442,936.10, 664,509.97 and 143,417.00 is: 215,159.76
Step by Step Solution
- Step 1: Write the proportion equation
442,936.10 : 664,509.97 = 143,417.00 : x - Step 2: Convert to fraction form
442,936.10/664,509.97 = 143,417.00/x - Step 3: Cross multiply
442,936.10x = 664,509.97 × 143,417.00 - Step 4: Simplify right side
442,936.10x = 95,302,022,686.40 - Step 5: Solve for x
x = 95,302,022,686.40/442,936.10 - Step 6: Final answer
x = 215,159.76
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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.