Finding the Fourth Proportional to 254,666.70, 381,562.65 and 121,259.70
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Solution
The fourth proportional to 254,666.70, 381,562.65 and 121,259.70 is: 181,681.28
Step by Step Solution
- Step 1: Write the proportion equation
254,666.70 : 381,562.65 = 121,259.70 : x - Step 2: Convert to fraction form
254,666.70/381,562.65 = 121,259.70/x - Step 3: Cross multiply
254,666.70x = 381,562.65 × 121,259.70 - Step 4: Simplify right side
254,666.70x = 46,268,172,470.21 - Step 5: Solve for x
x = 46,268,172,470.21/254,666.70 - Step 6: Final answer
x = 181,681.28
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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.