Finding the Fourth Proportional to 247,763.07, 341,929.60 and 138,868.70
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Solution
The fourth proportional to 247,763.07, 341,929.60 and 138,868.70 is: 191,648.08
Step by Step Solution
- Step 1: Write the proportion equation
247,763.07 : 341,929.60 = 138,868.70 : x - Step 2: Convert to fraction form
247,763.07/341,929.60 = 138,868.70/x - Step 3: Cross multiply
247,763.07x = 341,929.60 × 138,868.70 - Step 4: Simplify right side
247,763.07x = 47,483,316,986.70 - Step 5: Solve for x
x = 47,483,316,986.70/247,763.07 - Step 6: Final answer
x = 191,648.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.