Finding the Fourth Proportional to 383,156.68, 528,756.24 and 213,390.80
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Solution
The fourth proportional to 383,156.68, 528,756.24 and 213,390.80 is: 294,479.32
Step by Step Solution
- Step 1: Write the proportion equation
383,156.68 : 528,756.24 = 213,390.80 : x - Step 2: Convert to fraction form
383,156.68/528,756.24 = 213,390.80/x - Step 3: Cross multiply
383,156.68x = 528,756.24 × 213,390.80 - Step 4: Simplify right side
383,156.68x = 112,831,717,058.59 - Step 5: Solve for x
x = 112,831,717,058.59/383,156.68 - Step 6: Final answer
x = 294,479.32
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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.