Finding the Fourth Proportional to 357,953.21, 536,816.37 and 121,240.55
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Solution
The fourth proportional to 357,953.21, 536,816.37 and 121,240.55 is: 181,822.40
Step by Step Solution
- Step 1: Write the proportion equation
357,953.21 : 536,816.37 = 121,240.55 : x - Step 2: Convert to fraction form
357,953.21/536,816.37 = 121,240.55/x - Step 3: Cross multiply
357,953.21x = 536,816.37 × 121,240.55 - Step 4: Simplify right side
357,953.21x = 65,083,911,947.80 - Step 5: Solve for x
x = 65,083,911,947.80/357,953.21 - Step 6: Final answer
x = 181,822.40
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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.