Finding the Fourth Proportional to 292,137.36, 438,387.48 and 187,031.76
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Solution
The fourth proportional to 292,137.36, 438,387.48 and 187,031.76 is: 280,663.80
Step by Step Solution
- Step 1: Write the proportion equation
292,137.36 : 438,387.48 = 187,031.76 : x - Step 2: Convert to fraction form
292,137.36/438,387.48 = 187,031.76/x - Step 3: Cross multiply
292,137.36x = 438,387.48 × 187,031.76 - Step 4: Simplify right side
292,137.36x = 81,992,381,946.36 - Step 5: Solve for x
x = 81,992,381,946.36/292,137.36 - Step 6: Final answer
x = 280,663.80
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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.