Finding the Fourth Proportional to 430,372.57, 645,595.00 and 130,855.75
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Solution
The fourth proportional to 430,372.57, 645,595.00 and 130,855.75 is: 196,294.62
Step by Step Solution
- Step 1: Write the proportion equation
430,372.57 : 645,595.00 = 130,855.75 : x - Step 2: Convert to fraction form
430,372.57/645,595.00 = 130,855.75/x - Step 3: Cross multiply
430,372.57x = 645,595.00 × 130,855.75 - Step 4: Simplify right side
430,372.57x = 84,479,818,401.10 - Step 5: Solve for x
x = 84,479,818,401.10/430,372.57 - Step 6: Final answer
x = 196,294.62
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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.