Finding the Fourth Proportional to 297,938.40, 446,986.80 and 129,386.40
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Solution
The fourth proportional to 297,938.40, 446,986.80 and 129,386.40 is: 194,113.99
Step by Step Solution
- Step 1: Write the proportion equation
297,938.40 : 446,986.80 = 129,386.40 : x - Step 2: Convert to fraction form
297,938.40/446,986.80 = 129,386.40/x - Step 3: Cross multiply
297,938.40x = 446,986.80 × 129,386.40 - Step 4: Simplify right side
297,938.40x = 57,834,012,899.52 - Step 5: Solve for x
x = 57,834,012,899.52/297,938.40 - Step 6: Final answer
x = 194,113.99
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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.