Finding the Fourth Proportional to 425,342.34, 638,106.95 and 125,799.57
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Solution
The fourth proportional to 425,342.34, 638,106.95 and 125,799.57 is: 188,726.99
Step by Step Solution
- Step 1: Write the proportion equation
425,342.34 : 638,106.95 = 125,799.57 : x - Step 2: Convert to fraction form
425,342.34/638,106.95 = 125,799.57/x - Step 3: Cross multiply
425,342.34x = 638,106.95 × 125,799.57 - Step 4: Simplify right side
425,342.34x = 80,273,579,924.01 - Step 5: Solve for x
x = 80,273,579,924.01/425,342.34 - Step 6: Final answer
x = 188,726.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.