Finding the Fourth Proportional to 342,088.71, 472,157.36 and 198,931.34
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Solution
The fourth proportional to 342,088.71, 472,157.36 and 198,931.34 is: 274,568.82
Step by Step Solution
- Step 1: Write the proportion equation
342,088.71 : 472,157.36 = 198,931.34 : x - Step 2: Convert to fraction form
342,088.71/472,157.36 = 198,931.34/x - Step 3: Cross multiply
342,088.71x = 472,157.36 × 198,931.34 - Step 4: Simplify right side
342,088.71x = 93,926,893,706.21 - Step 5: Solve for x
x = 93,926,893,706.21/342,088.71 - Step 6: Final answer
x = 274,568.82
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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.