Finding the Fourth Proportional to 430,927.80, 646,391.70 and 164,551.20
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Solution
The fourth proportional to 430,927.80, 646,391.70 and 164,551.20 is: 246,826.80
Step by Step Solution
- Step 1: Write the proportion equation
430,927.80 : 646,391.70 = 164,551.20 : x - Step 2: Convert to fraction form
430,927.80/646,391.70 = 164,551.20/x - Step 3: Cross multiply
430,927.80x = 646,391.70 × 164,551.20 - Step 4: Simplify right side
430,927.80x = 106,364,529,905.04 - Step 5: Solve for x
x = 106,364,529,905.04/430,927.80 - Step 6: Final answer
x = 246,826.80
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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.