Finding the Fourth Proportional to 342,089.22, 472,069.20 and 189,117.68
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Solution
The fourth proportional to 342,089.22, 472,069.20 and 189,117.68 is: 260,974.70
Step by Step Solution
- Step 1: Write the proportion equation
342,089.22 : 472,069.20 = 189,117.68 : x - Step 2: Convert to fraction form
342,089.22/472,069.20 = 189,117.68/x - Step 3: Cross multiply
342,089.22x = 472,069.20 × 189,117.68 - Step 4: Simplify right side
342,089.22x = 89,276,630,957.87 - Step 5: Solve for x
x = 89,276,630,957.87/342,089.22 - Step 6: Final answer
x = 260,974.70
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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.