Finding the Fourth Proportional to 278,442.66, 384,248.59 and 151,118.28
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Solution
The fourth proportional to 278,442.66, 384,248.59 and 151,118.28 is: 208,541.99
Step by Step Solution
- Step 1: Write the proportion equation
278,442.66 : 384,248.59 = 151,118.28 : x - Step 2: Convert to fraction form
278,442.66/384,248.59 = 151,118.28/x - Step 3: Cross multiply
278,442.66x = 384,248.59 × 151,118.28 - Step 4: Simplify right side
278,442.66x = 58,066,986,013.23 - Step 5: Solve for x
x = 58,066,986,013.23/278,442.66 - Step 6: Final answer
x = 208,541.99
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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.