Finding the Fourth Proportional to 289,292.19, 399,130.36 and 187,395.76
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Solution
The fourth proportional to 289,292.19, 399,130.36 and 187,395.76 is: 258,546.00
Step by Step Solution
- Step 1: Write the proportion equation
289,292.19 : 399,130.36 = 187,395.76 : x - Step 2: Convert to fraction form
289,292.19/399,130.36 = 187,395.76/x - Step 3: Cross multiply
289,292.19x = 399,130.36 × 187,395.76 - Step 4: Simplify right side
289,292.19x = 74,795,337,151.27 - Step 5: Solve for x
x = 74,795,337,151.27/289,292.19 - Step 6: Final answer
x = 258,546.00
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1.5x scale
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.