Finding the Fourth Proportional to 257,782.91, 386,582.02 and 89,257.95
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Solution
The fourth proportional to 257,782.91, 386,582.02 and 89,257.95 is: 133,854.95
Step by Step Solution
- Step 1: Write the proportion equation
257,782.91 : 386,582.02 = 89,257.95 : x - Step 2: Convert to fraction form
257,782.91/386,582.02 = 89,257.95/x - Step 3: Cross multiply
257,782.91x = 386,582.02 × 89,257.95 - Step 4: Simplify right side
257,782.91x = 34,505,518,388.91 - Step 5: Solve for x
x = 34,505,518,388.91/257,782.91 - Step 6: Final answer
x = 133,854.95
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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.