Finding the Fourth Proportional to 402,031.53, 555,063.14 and 249,233.02
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Solution
The fourth proportional to 402,031.53, 555,063.14 and 249,233.02 is: 344,102.52
Step by Step Solution
- Step 1: Write the proportion equation
402,031.53 : 555,063.14 = 249,233.02 : x - Step 2: Convert to fraction form
402,031.53/555,063.14 = 249,233.02/x - Step 3: Cross multiply
402,031.53x = 555,063.14 × 249,233.02 - Step 4: Simplify right side
402,031.53x = 138,340,061,908.31 - Step 5: Solve for x
x = 138,340,061,908.31/402,031.53 - Step 6: Final answer
x = 344,102.52
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1.5x scale
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.