Finding the Fourth Proportional to 420,134.13, 630,126.36 and 167,393.43
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Solution
The fourth proportional to 420,134.13, 630,126.36 and 167,393.43 is: 251,060.33
Step by Step Solution
- Step 1: Write the proportion equation
420,134.13 : 630,126.36 = 167,393.43 : x - Step 2: Convert to fraction form
420,134.13/630,126.36 = 167,393.43/x - Step 3: Cross multiply
420,134.13x = 630,126.36 × 167,393.43 - Step 4: Simplify right side
420,134.13x = 105,479,012,733.82 - Step 5: Solve for x
x = 105,479,012,733.82/420,134.13 - Step 6: Final answer
x = 251,060.33
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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.