Finding the Fourth Proportional to 320,030.68, 441,647.94 and 176,782.18
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Solution
The fourth proportional to 320,030.68, 441,647.94 and 176,782.18 is: 243,962.50
Step by Step Solution
- Step 1: Write the proportion equation
320,030.68 : 441,647.94 = 176,782.18 : x - Step 2: Convert to fraction form
320,030.68/441,647.94 = 176,782.18/x - Step 3: Cross multiply
320,030.68x = 441,647.94 × 176,782.18 - Step 4: Simplify right side
320,030.68x = 78,075,485,625.71 - Step 5: Solve for x
x = 78,075,485,625.71/320,030.68 - Step 6: Final answer
x = 243,962.50
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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.