Finding the Fourth Proportional to 257,842.05, 386,860.28 and 124,840.05
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Solution
The fourth proportional to 257,842.05, 386,860.28 and 124,840.05 is: 187,307.14
Step by Step Solution
- Step 1: Write the proportion equation
257,842.05 : 386,860.28 = 124,840.05 : x - Step 2: Convert to fraction form
257,842.05/386,860.28 = 124,840.05/x - Step 3: Cross multiply
257,842.05x = 386,860.28 × 124,840.05 - Step 4: Simplify right side
257,842.05x = 48,295,656,074.01 - Step 5: Solve for x
x = 48,295,656,074.01/257,842.05 - Step 6: Final answer
x = 187,307.14
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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.