Finding the Fourth Proportional to 368,408.90, 552,590.79 and 216,689.88
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Solution
The fourth proportional to 368,408.90, 552,590.79 and 216,689.88 is: 325,021.55
Step by Step Solution
- Step 1: Write the proportion equation
368,408.90 : 552,590.79 = 216,689.88 : x - Step 2: Convert to fraction form
368,408.90/552,590.79 = 216,689.88/x - Step 3: Cross multiply
368,408.90x = 552,590.79 × 216,689.88 - Step 4: Simplify right side
368,408.90x = 119,740,831,974.21 - Step 5: Solve for x
x = 119,740,831,974.21/368,408.90 - Step 6: Final answer
x = 325,021.55
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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.