Finding the Fourth Proportional to 438,661.80, 657,992.70 and 106,237.80
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Solution
The fourth proportional to 438,661.80, 657,992.70 and 106,237.80 is: 159,356.70
Step by Step Solution
- Step 1: Write the proportion equation
438,661.80 : 657,992.70 = 106,237.80 : x - Step 2: Convert to fraction form
438,661.80/657,992.70 = 106,237.80/x - Step 3: Cross multiply
438,661.80x = 657,992.70 × 106,237.80 - Step 4: Simplify right side
438,661.80x = 69,903,696,864.06 - Step 5: Solve for x
x = 69,903,696,864.06/438,661.80 - Step 6: Final answer
x = 159,356.70
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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.