Finding the Fourth Proportional to 249,945.99, 344,925.69 and 136,768.74
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Solution
The fourth proportional to 249,945.99, 344,925.69 and 136,768.74 is: 188,740.98
Step by Step Solution
- Step 1: Write the proportion equation
249,945.99 : 344,925.69 = 136,768.74 : x - Step 2: Convert to fraction form
249,945.99/344,925.69 = 136,768.74/x - Step 3: Cross multiply
249,945.99x = 344,925.69 × 136,768.74 - Step 4: Simplify right side
249,945.99x = 47,175,049,606.46 - Step 5: Solve for x
x = 47,175,049,606.46/249,945.99 - Step 6: Final answer
x = 188,740.98
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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.