Finding the Fourth Proportional to 310,803.21, 466,135.43 and 121,268.61
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Solution
The fourth proportional to 310,803.21, 466,135.43 and 121,268.61 is: 181,875.84
Step by Step Solution
- Step 1: Write the proportion equation
310,803.21 : 466,135.43 = 121,268.61 : x - Step 2: Convert to fraction form
310,803.21/466,135.43 = 121,268.61/x - Step 3: Cross multiply
310,803.21x = 466,135.43 × 121,268.61 - Step 4: Simplify right side
310,803.21x = 56,527,595,061.51 - Step 5: Solve for x
x = 56,527,595,061.51/310,803.21 - Step 6: Final answer
x = 181,875.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.