Finding the Fourth Proportional to 430,694.72, 646,150.08 and 253,350.08
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Solution
The fourth proportional to 430,694.72, 646,150.08 and 253,350.08 is: 380,088.65
Step by Step Solution
- Step 1: Write the proportion equation
430,694.72 : 646,150.08 = 253,350.08 : x - Step 2: Convert to fraction form
430,694.72/646,150.08 = 253,350.08/x - Step 3: Cross multiply
430,694.72x = 646,150.08 × 253,350.08 - Step 4: Simplify right side
430,694.72x = 163,702,174,460.01 - Step 5: Solve for x
x = 163,702,174,460.01/430,694.72 - Step 6: Final answer
x = 380,088.65
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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.