Finding the Fourth Proportional to 419,139.48, 578,395.14 and 237,847.70
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Solution
The fourth proportional to 419,139.48, 578,395.14 and 237,847.70 is: 328,219.98
Step by Step Solution
- Step 1: Write the proportion equation
419,139.48 : 578,395.14 = 237,847.70 : x - Step 2: Convert to fraction form
419,139.48/578,395.14 = 237,847.70/x - Step 3: Cross multiply
419,139.48x = 578,395.14 × 237,847.70 - Step 4: Simplify right side
419,139.48x = 137,569,953,740.18 - Step 5: Solve for x
x = 137,569,953,740.18/419,139.48 - Step 6: Final answer
x = 328,219.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.