Finding the Fourth Proportional to 461,358.78, 691,977.36 and 137,139.99
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Solution
The fourth proportional to 461,358.78, 691,977.36 and 137,139.99 is: 205,691.91
Step by Step Solution
- Step 1: Write the proportion equation
461,358.78 : 691,977.36 = 137,139.99 : x - Step 2: Convert to fraction form
461,358.78/691,977.36 = 137,139.99/x - Step 3: Cross multiply
461,358.78x = 691,977.36 × 137,139.99 - Step 4: Simplify right side
461,358.78x = 94,897,768,230.63 - Step 5: Solve for x
x = 94,897,768,230.63/461,358.78 - Step 6: Final answer
x = 205,691.91
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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.