Finding the Fourth Proportional to 253,209.24, 349,415.71 and 138,465.55
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Solution
The fourth proportional to 253,209.24, 349,415.71 and 138,465.55 is: 191,075.33
Step by Step Solution
- Step 1: Write the proportion equation
253,209.24 : 349,415.71 = 138,465.55 : x - Step 2: Convert to fraction form
253,209.24/349,415.71 = 138,465.55/x - Step 3: Cross multiply
253,209.24x = 349,415.71 × 138,465.55 - Step 4: Simplify right side
253,209.24x = 48,382,038,554.40 - Step 5: Solve for x
x = 48,382,038,554.40/253,209.24 - Step 6: Final answer
x = 191,075.33
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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.