Finding the Fourth Proportional to 514,555.62, 771,763.35 and 135,444.60
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Solution
The fourth proportional to 514,555.62, 771,763.35 and 135,444.60 is: 203,148.45
Step by Step Solution
- Step 1: Write the proportion equation
514,555.62 : 771,763.35 = 135,444.60 : x - Step 2: Convert to fraction form
514,555.62/771,763.35 = 135,444.60/x - Step 3: Cross multiply
514,555.62x = 771,763.35 × 135,444.60 - Step 4: Simplify right side
514,555.62x = 104,531,178,235.41 - Step 5: Solve for x
x = 104,531,178,235.41/514,555.62 - Step 6: Final answer
x = 203,148.45
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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.