Finding the Fourth Proportional to 344,640.78, 516,985.74 and 91,919.84
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Solution
The fourth proportional to 344,640.78, 516,985.74 and 91,919.84 is: 137,886.31
Step by Step Solution
- Step 1: Write the proportion equation
344,640.78 : 516,985.74 = 91,919.84 : x - Step 2: Convert to fraction form
344,640.78/516,985.74 = 91,919.84/x - Step 3: Cross multiply
344,640.78x = 516,985.74 × 91,919.84 - Step 4: Simplify right side
344,640.78x = 47,521,243,918.15 - Step 5: Solve for x
x = 47,521,243,918.15/344,640.78 - Step 6: Final answer
x = 137,886.31
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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.