Finding the Fourth Proportional to 257,032.80, 385,658.55 and 162,335.70
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Solution
The fourth proportional to 257,032.80, 385,658.55 and 162,335.70 is: 243,572.61
Step by Step Solution
- Step 1: Write the proportion equation
257,032.80 : 385,658.55 = 162,335.70 : x - Step 2: Convert to fraction form
257,032.80/385,658.55 = 162,335.70/x - Step 3: Cross multiply
257,032.80x = 385,658.55 × 162,335.70 - Step 4: Simplify right side
257,032.80x = 62,606,150,675.24 - Step 5: Solve for x
x = 62,606,150,675.24/257,032.80 - Step 6: Final answer
x = 243,572.61
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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.