Finding the Fourth Proportional to 345,862.76, 477,209.34 and 209,893.68
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Solution
The fourth proportional to 345,862.76, 477,209.34 and 209,893.68 is: 289,603.96
Step by Step Solution
- Step 1: Write the proportion equation
345,862.76 : 477,209.34 = 209,893.68 : x - Step 2: Convert to fraction form
345,862.76/477,209.34 = 209,893.68/x - Step 3: Cross multiply
345,862.76x = 477,209.34 × 209,893.68 - Step 4: Simplify right side
345,862.76x = 100,163,224,502.97 - Step 5: Solve for x
x = 100,163,224,502.97/345,862.76 - Step 6: Final answer
x = 289,603.96
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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.