Finding the Fourth Proportional to 425,537.60, 638,536.80 and 188,916.80
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Solution
The fourth proportional to 425,537.60, 638,536.80 and 188,916.80 is: 283,477.49
Step by Step Solution
- Step 1: Write the proportion equation
425,537.60 : 638,536.80 = 188,916.80 : x - Step 2: Convert to fraction form
425,537.60/638,536.80 = 188,916.80/x - Step 3: Cross multiply
425,537.60x = 638,536.80 × 188,916.80 - Step 4: Simplify right side
425,537.60x = 120,630,328,938.24 - Step 5: Solve for x
x = 120,630,328,938.24/425,537.60 - Step 6: Final answer
x = 283,477.49
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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.