Finding the Fourth Proportional to 643,225.68, 964,157.58 and 216,355.14
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Solution
The fourth proportional to 643,225.68, 964,157.58 and 216,355.14 is: 324,303.67
Step by Step Solution
- Step 1: Write the proportion equation
643,225.68 : 964,157.58 = 216,355.14 : x - Step 2: Convert to fraction form
643,225.68/964,157.58 = 216,355.14/x - Step 3: Cross multiply
643,225.68x = 964,157.58 × 216,355.14 - Step 4: Simplify right side
643,225.68x = 208,600,448,202.96 - Step 5: Solve for x
x = 208,600,448,202.96/643,225.68 - Step 6: Final answer
x = 324,303.67
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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.