Finding the Fourth Proportional to 399,689.34, 551,587.35 and 229,923.42
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Solution
The fourth proportional to 399,689.34, 551,587.35 and 229,923.42 is: 317,303.56
Step by Step Solution
- Step 1: Write the proportion equation
399,689.34 : 551,587.35 = 229,923.42 : x - Step 2: Convert to fraction form
399,689.34/551,587.35 = 229,923.42/x - Step 3: Cross multiply
399,689.34x = 551,587.35 × 229,923.42 - Step 4: Simplify right side
399,689.34x = 126,822,849,940.74 - Step 5: Solve for x
x = 126,822,849,940.74/399,689.34 - Step 6: Final answer
x = 317,303.56
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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.