Finding the Fourth Proportional to 260,031.70, 390,047.55 and 102,207.70
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Solution
The fourth proportional to 260,031.70, 390,047.55 and 102,207.70 is: 153,311.55
Step by Step Solution
- Step 1: Write the proportion equation
260,031.70 : 390,047.55 = 102,207.70 : x - Step 2: Convert to fraction form
260,031.70/390,047.55 = 102,207.70/x - Step 3: Cross multiply
260,031.70x = 390,047.55 × 102,207.70 - Step 4: Simplify right side
260,031.70x = 39,865,862,976.14 - Step 5: Solve for x
x = 39,865,862,976.14/260,031.70 - Step 6: Final answer
x = 153,311.55
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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.