Finding the Fourth Proportional to 430,257.99, 645,386.67 and 130,737.36
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Solution
The fourth proportional to 430,257.99, 645,386.67 and 130,737.36 is: 196,105.94
Step by Step Solution
- Step 1: Write the proportion equation
430,257.99 : 645,386.67 = 130,737.36 : x - Step 2: Convert to fraction form
430,257.99/645,386.67 = 130,737.36/x - Step 3: Cross multiply
430,257.99x = 645,386.67 × 130,737.36 - Step 4: Simplify right side
430,257.99x = 84,376,149,414.99 - Step 5: Solve for x
x = 84,376,149,414.99/430,257.99 - Step 6: Final answer
x = 196,105.94
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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.