Finding the Fourth Proportional to 312,031.42, 430,602.87 and 168,791.02
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Solution
The fourth proportional to 312,031.42, 430,602.87 and 168,791.02 is: 232,931.34
Step by Step Solution
- Step 1: Write the proportion equation
312,031.42 : 430,602.87 = 168,791.02 : x - Step 2: Convert to fraction form
312,031.42/430,602.87 = 168,791.02/x - Step 3: Cross multiply
312,031.42x = 430,602.87 × 168,791.02 - Step 4: Simplify right side
312,031.42x = 72,681,897,642.23 - Step 5: Solve for x
x = 72,681,897,642.23/312,031.42 - Step 6: Final answer
x = 232,931.34
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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.