Finding the Fourth Proportional to 320,038.01, 479,721.71 and 149,118.79
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Solution
The fourth proportional to 320,038.01, 479,721.71 and 149,118.79 is: 223,521.95
Step by Step Solution
- Step 1: Write the proportion equation
320,038.01 : 479,721.71 = 149,118.79 : x - Step 2: Convert to fraction form
320,038.01/479,721.71 = 149,118.79/x - Step 3: Cross multiply
320,038.01x = 479,721.71 × 149,118.79 - Step 4: Simplify right side
320,038.01x = 71,535,520,931.93 - Step 5: Solve for x
x = 71,535,520,931.93/320,038.01 - Step 6: Final answer
x = 223,521.95
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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.