Finding the Fourth Proportional to 648,155.70, 971,941.95 and 248,663.70
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Solution
The fourth proportional to 648,155.70, 971,941.95 and 248,663.70 is: 372,883.68
Step by Step Solution
- Step 1: Write the proportion equation
648,155.70 : 971,941.95 = 248,663.70 : x - Step 2: Convert to fraction form
648,155.70/971,941.95 = 248,663.70/x - Step 3: Cross multiply
648,155.70x = 971,941.95 × 248,663.70 - Step 4: Simplify right side
648,155.70x = 241,686,681,472.22 - Step 5: Solve for x
x = 241,686,681,472.22/648,155.70 - Step 6: Final answer
x = 372,883.68
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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.