Finding the Fourth Proportional to 284,297.80, 392,328.36 and 156,970.60
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Solution
The fourth proportional to 284,297.80, 392,328.36 and 156,970.60 is: 216,617.99
Step by Step Solution
- Step 1: Write the proportion equation
284,297.80 : 392,328.36 = 156,970.60 : x - Step 2: Convert to fraction form
284,297.80/392,328.36 = 156,970.60/x - Step 3: Cross multiply
284,297.80x = 392,328.36 × 156,970.60 - Step 4: Simplify right side
284,297.80x = 61,584,018,066.22 - Step 5: Solve for x
x = 61,584,018,066.22/284,297.80 - Step 6: Final answer
x = 216,617.99
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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.