Finding the Fourth Proportional to 278,352.18, 384,121.04 and 169,417.08
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Solution
The fourth proportional to 278,352.18, 384,121.04 and 169,417.08 is: 233,792.54
Step by Step Solution
- Step 1: Write the proportion equation
278,352.18 : 384,121.04 = 169,417.08 : x - Step 2: Convert to fraction form
278,352.18/384,121.04 = 169,417.08/x - Step 3: Cross multiply
278,352.18x = 384,121.04 × 169,417.08 - Step 4: Simplify right side
278,352.18x = 65,076,664,116.28 - Step 5: Solve for x
x = 65,076,664,116.28/278,352.18 - Step 6: Final answer
x = 233,792.54
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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.