Finding the Fourth Proportional to 202,011.66, 278,726.10 and 121,423.14
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Solution
The fourth proportional to 202,011.66, 278,726.10 and 121,423.14 is: 167,533.89
Step by Step Solution
- Step 1: Write the proportion equation
202,011.66 : 278,726.10 = 121,423.14 : x - Step 2: Convert to fraction form
202,011.66/278,726.10 = 121,423.14/x - Step 3: Cross multiply
202,011.66x = 278,726.10 × 121,423.14 - Step 4: Simplify right side
202,011.66x = 33,843,798,261.95 - Step 5: Solve for x
x = 33,843,798,261.95/202,011.66 - Step 6: Final answer
x = 167,533.89
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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.