Finding the Fourth Proportional to 388,913.84, 536,510.34 and 259,883.99
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Solution
The fourth proportional to 388,913.84, 536,510.34 and 259,883.99 is: 358,512.43
Step by Step Solution
- Step 1: Write the proportion equation
388,913.84 : 536,510.34 = 259,883.99 : x - Step 2: Convert to fraction form
388,913.84/536,510.34 = 259,883.99/x - Step 3: Cross multiply
388,913.84x = 536,510.34 × 259,883.99 - Step 4: Simplify right side
388,913.84x = 139,430,446,433.90 - Step 5: Solve for x
x = 139,430,446,433.90/388,913.84 - Step 6: Final answer
x = 358,512.43
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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.