Finding the Fourth Proportional to 430,754.91, 646,176.56 and 164,739.17
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Solution
The fourth proportional to 430,754.91, 646,176.56 and 164,739.17 is: 247,125.65
Step by Step Solution
- Step 1: Write the proportion equation
430,754.91 : 646,176.56 = 164,739.17 : x - Step 2: Convert to fraction form
430,754.91/646,176.56 = 164,739.17/x - Step 3: Cross multiply
430,754.91x = 646,176.56 × 164,739.17 - Step 4: Simplify right side
430,754.91x = 106,450,588,714.84 - Step 5: Solve for x
x = 106,450,588,714.84/430,754.91 - Step 6: Final answer
x = 247,125.65
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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.