Finding the Fourth Proportional to 239,191.60, 330,075.12 and 143,750.80
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Solution
The fourth proportional to 239,191.60, 330,075.12 and 143,750.80 is: 198,370.52
Step by Step Solution
- Step 1: Write the proportion equation
239,191.60 : 330,075.12 = 143,750.80 : x - Step 2: Convert to fraction form
239,191.60/330,075.12 = 143,750.80/x - Step 3: Cross multiply
239,191.60x = 330,075.12 × 143,750.80 - Step 4: Simplify right side
239,191.60x = 47,448,562,560.10 - Step 5: Solve for x
x = 47,448,562,560.10/239,191.60 - Step 6: Final answer
x = 198,370.52
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1.5x scale
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.