Finding the Fourth Proportional to 292,688.10, 438,938.73 and 92,961.74
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Solution
The fourth proportional to 292,688.10, 438,938.73 and 92,961.74 is: 139,412.94
Step by Step Solution
- Step 1: Write the proportion equation
292,688.10 : 438,938.73 = 92,961.74 : x - Step 2: Convert to fraction form
292,688.10/438,938.73 = 92,961.74/x - Step 3: Cross multiply
292,688.10x = 438,938.73 × 92,961.74 - Step 4: Simplify right side
292,688.10x = 40,804,509,191.54 - Step 5: Solve for x
x = 40,804,509,191.54/292,688.10 - Step 6: Final answer
x = 139,412.94
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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.