Finding the Fourth Proportional to 430,158.16, 645,235.80 and 110,309.68
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Solution
The fourth proportional to 430,158.16, 645,235.80 and 110,309.68 is: 165,464.15
Step by Step Solution
- Step 1: Write the proportion equation
430,158.16 : 645,235.80 = 110,309.68 : x - Step 2: Convert to fraction form
430,158.16/645,235.80 = 110,309.68/x - Step 3: Cross multiply
430,158.16x = 645,235.80 × 110,309.68 - Step 4: Simplify right side
430,158.16x = 71,175,754,622.54 - Step 5: Solve for x
x = 71,175,754,622.54/430,158.16 - Step 6: Final answer
x = 165,464.15
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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.