Finding the Fourth Proportional to 425,925.19, 638,893.35 and 141,615.74
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Solution
The fourth proportional to 425,925.19, 638,893.35 and 141,615.74 is: 212,425.46
Step by Step Solution
- Step 1: Write the proportion equation
425,925.19 : 638,893.35 = 141,615.74 : x - Step 2: Convert to fraction form
425,925.19/638,893.35 = 141,615.74/x - Step 3: Cross multiply
425,925.19x = 638,893.35 × 141,615.74 - Step 4: Simplify right side
425,925.19x = 90,477,356,669.62 - Step 5: Solve for x
x = 90,477,356,669.62/425,925.19 - Step 6: Final answer
x = 212,425.46
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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.