Finding the Fourth Proportional to 384,113.18, 530,076.09 and 212,031.08
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Solution
The fourth proportional to 384,113.18, 530,076.09 and 212,031.08 is: 292,602.84
Step by Step Solution
- Step 1: Write the proportion equation
384,113.18 : 530,076.09 = 212,031.08 : x - Step 2: Convert to fraction form
384,113.18/530,076.09 = 212,031.08/x - Step 3: Cross multiply
384,113.18x = 530,076.09 × 212,031.08 - Step 4: Simplify right side
384,113.18x = 112,392,605,844.88 - Step 5: Solve for x
x = 112,392,605,844.88/384,113.18 - Step 6: Final answer
x = 292,602.84
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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.