Finding the Fourth Proportional to 486,647.70, 729,973.28 and 149,686.08
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Solution
The fourth proportional to 486,647.70, 729,973.28 and 149,686.08 is: 224,529.65
Step by Step Solution
- Step 1: Write the proportion equation
486,647.70 : 729,973.28 = 149,686.08 : x - Step 2: Convert to fraction form
486,647.70/729,973.28 = 149,686.08/x - Step 3: Cross multiply
486,647.70x = 729,973.28 × 149,686.08 - Step 4: Simplify right side
486,647.70x = 109,266,838,787.94 - Step 5: Solve for x
x = 109,266,838,787.94/486,647.70 - Step 6: Final answer
x = 224,529.65
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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.