Finding the Fourth Proportional to 257,334.84, 355,172.58 and 155,377.08
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Solution
The fourth proportional to 257,334.84, 355,172.58 and 155,377.08 is: 214,450.86
Step by Step Solution
- Step 1: Write the proportion equation
257,334.84 : 355,172.58 = 155,377.08 : x - Step 2: Convert to fraction form
257,334.84/355,172.58 = 155,377.08/x - Step 3: Cross multiply
257,334.84x = 355,172.58 × 155,377.08 - Step 4: Simplify right side
257,334.84x = 55,185,678,376.47 - Step 5: Solve for x
x = 55,185,678,376.47/257,334.84 - Step 6: Final answer
x = 214,450.86
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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.