Finding the Fourth Proportional to 309,332.05, 426,877.65 and 173,365.95
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Solution
The fourth proportional to 309,332.05, 426,877.65 and 173,365.95 is: 239,244.69
Step by Step Solution
- Step 1: Write the proportion equation
309,332.05 : 426,877.65 = 173,365.95 : x - Step 2: Convert to fraction form
309,332.05/426,877.65 = 173,365.95/x - Step 3: Cross multiply
309,332.05x = 426,877.65 × 173,365.95 - Step 4: Simplify right side
309,332.05x = 74,006,050,926.81 - Step 5: Solve for x
x = 74,006,050,926.81/309,332.05 - Step 6: Final answer
x = 239,244.69
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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.