Finding the Fourth Proportional to 438,177.60, 657,266.40 and 201,981.60
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Solution
The fourth proportional to 438,177.60, 657,266.40 and 201,981.60 is: 302,972.40
Step by Step Solution
- Step 1: Write the proportion equation
438,177.60 : 657,266.40 = 201,981.60 : x - Step 2: Convert to fraction form
438,177.60/657,266.40 = 201,981.60/x - Step 3: Cross multiply
438,177.60x = 657,266.40 × 201,981.60 - Step 4: Simplify right side
438,177.60x = 132,755,719,098.24 - Step 5: Solve for x
x = 132,755,719,098.24/438,177.60 - Step 6: Final answer
x = 302,972.40
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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.