Finding the Fourth Proportional to 465,389.71, 697,438.70 and 212,051.07
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Solution
The fourth proportional to 465,389.71, 697,438.70 and 212,051.07 is: 317,782.32
Step by Step Solution
- Step 1: Write the proportion equation
465,389.71 : 697,438.70 = 212,051.07 : x - Step 2: Convert to fraction form
465,389.71/697,438.70 = 212,051.07/x - Step 3: Cross multiply
465,389.71x = 697,438.70 × 212,051.07 - Step 4: Simplify right side
465,389.71x = 147,892,622,594.41 - Step 5: Solve for x
x = 147,892,622,594.41/465,389.71 - Step 6: Final answer
x = 317,782.32
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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.