Finding the Fourth Proportional to 438,739.20, 657,671.40 and 201,668.40
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Solution
The fourth proportional to 438,739.20, 657,671.40 and 201,668.40 is: 302,301.55
Step by Step Solution
- Step 1: Write the proportion equation
438,739.20 : 657,671.40 = 201,668.40 : x - Step 2: Convert to fraction form
438,739.20/657,671.40 = 201,668.40/x - Step 3: Cross multiply
438,739.20x = 657,671.40 × 201,668.40 - Step 4: Simplify right side
438,739.20x = 132,631,538,963.76 - Step 5: Solve for x
x = 132,631,538,963.76/438,739.20 - Step 6: Final answer
x = 302,301.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.