Finding the Fourth Proportional to 249,556.76, 344,348.52 and 142,128.80
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Solution
The fourth proportional to 249,556.76, 344,348.52 and 142,128.80 is: 196,115.07
Step by Step Solution
- Step 1: Write the proportion equation
249,556.76 : 344,348.52 = 142,128.80 : x - Step 2: Convert to fraction form
249,556.76/344,348.52 = 142,128.80/x - Step 3: Cross multiply
249,556.76x = 344,348.52 × 142,128.80 - Step 4: Simplify right side
249,556.76x = 48,941,841,929.38 - Step 5: Solve for x
x = 48,941,841,929.38/249,556.76 - Step 6: Final answer
x = 196,115.07
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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.