Finding the Fourth Proportional to 278,379.99, 417,365.53 and 88,731.18
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Solution
The fourth proportional to 278,379.99, 417,365.53 and 88,731.18 is: 133,031.60
Step by Step Solution
- Step 1: Write the proportion equation
278,379.99 : 417,365.53 = 88,731.18 : x - Step 2: Convert to fraction form
278,379.99/417,365.53 = 88,731.18/x - Step 3: Cross multiply
278,379.99x = 417,365.53 × 88,731.18 - Step 4: Simplify right side
278,379.99x = 37,033,335,746.40 - Step 5: Solve for x
x = 37,033,335,746.40/278,379.99 - Step 6: Final answer
x = 133,031.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.