Finding the Fourth Proportional to 430,588.82, 645,948.84 and 220,155.68
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Solution
The fourth proportional to 430,588.82, 645,948.84 and 220,155.68 is: 330,267.07
Step by Step Solution
- Step 1: Write the proportion equation
430,588.82 : 645,948.84 = 220,155.68 : x - Step 2: Convert to fraction form
430,588.82/645,948.84 = 220,155.68/x - Step 3: Cross multiply
430,588.82x = 645,948.84 × 220,155.68 - Step 4: Simplify right side
430,588.82x = 142,209,306,115.41 - Step 5: Solve for x
x = 142,209,306,115.41/430,588.82 - Step 6: Final answer
x = 330,267.07
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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.