Finding the Fourth Proportional to 251,285.11, 346,774.58 and 138,115.15
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Solution
The fourth proportional to 251,285.11, 346,774.58 and 138,115.15 is: 190,599.53
Step by Step Solution
- Step 1: Write the proportion equation
251,285.11 : 346,774.58 = 138,115.15 : x - Step 2: Convert to fraction form
251,285.11/346,774.58 = 138,115.15/x - Step 3: Cross multiply
251,285.11x = 346,774.58 × 138,115.15 - Step 4: Simplify right side
251,285.11x = 47,894,823,132.89 - Step 5: Solve for x
x = 47,894,823,132.89/251,285.11 - Step 6: Final answer
x = 190,599.53
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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.