Finding the Fourth Proportional to 357,718.68, 493,641.54 and 202,655.52
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Solution
The fourth proportional to 357,718.68, 493,641.54 and 202,655.52 is: 279,658.82
Step by Step Solution
- Step 1: Write the proportion equation
357,718.68 : 493,641.54 = 202,655.52 : x - Step 2: Convert to fraction form
357,718.68/493,641.54 = 202,655.52/x - Step 3: Cross multiply
357,718.68x = 493,641.54 × 202,655.52 - Step 4: Simplify right side
357,718.68x = 100,039,182,982.30 - Step 5: Solve for x
x = 100,039,182,982.30/357,718.68 - Step 6: Final answer
x = 279,658.82
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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.