Finding the Fourth Proportional to 201,567.61, 278,070.24 and 129,970.63
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Solution
The fourth proportional to 201,567.61, 278,070.24 and 129,970.63 is: 179,299.46
Step by Step Solution
- Step 1: Write the proportion equation
201,567.61 : 278,070.24 = 129,970.63 : x - Step 2: Convert to fraction form
201,567.61/278,070.24 = 129,970.63/x - Step 3: Cross multiply
201,567.61x = 278,070.24 × 129,970.63 - Step 4: Simplify right side
201,567.61x = 36,140,964,277.05 - Step 5: Solve for x
x = 36,140,964,277.05/201,567.61 - Step 6: Final answer
x = 179,299.46
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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.