Finding the Fourth Proportional to 430,157.16, 645,234.30 and 110,308.68
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Solution
The fourth proportional to 430,157.16, 645,234.30 and 110,308.68 is: 165,462.65
Step by Step Solution
- Step 1: Write the proportion equation
430,157.16 : 645,234.30 = 110,308.68 : x - Step 2: Convert to fraction form
430,157.16/645,234.30 = 110,308.68/x - Step 3: Cross multiply
430,157.16x = 645,234.30 × 110,308.68 - Step 4: Simplify right side
430,157.16x = 71,174,943,923.72 - Step 5: Solve for x
x = 71,174,943,923.72/430,157.16 - Step 6: Final answer
x = 165,462.65
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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.