Finding the Fourth Proportional to 260,197.97, 390,031.09 and 147,640.41
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Solution
The fourth proportional to 260,197.97, 390,031.09 and 147,640.41 is: 221,309.76
Step by Step Solution
- Step 1: Write the proportion equation
260,197.97 : 390,031.09 = 147,640.41 : x - Step 2: Convert to fraction form
260,197.97/390,031.09 = 147,640.41/x - Step 3: Cross multiply
260,197.97x = 390,031.09 × 147,640.41 - Step 4: Simplify right side
260,197.97x = 57,584,349,671.25 - Step 5: Solve for x
x = 57,584,349,671.25/260,197.97 - Step 6: Final answer
x = 221,309.76
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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.