Finding the Fourth Proportional to 249,615.36, 344,649.60 and 154,252.80
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Solution
The fourth proportional to 249,615.36, 344,649.60 and 154,252.80 is: 212,980.35
Step by Step Solution
- Step 1: Write the proportion equation
249,615.36 : 344,649.60 = 154,252.80 : x - Step 2: Convert to fraction form
249,615.36/344,649.60 = 154,252.80/x - Step 3: Cross multiply
249,615.36x = 344,649.60 × 154,252.80 - Step 4: Simplify right side
249,615.36x = 53,163,165,818.88 - Step 5: Solve for x
x = 53,163,165,818.88/249,615.36 - Step 6: Final answer
x = 212,980.35
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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.