Finding the Fourth Proportional to 280,587.79, 420,881.68 and 103,017.97
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Solution
The fourth proportional to 280,587.79, 420,881.68 and 103,017.97 is: 154,526.95
Step by Step Solution
- Step 1: Write the proportion equation
280,587.79 : 420,881.68 = 103,017.97 : x - Step 2: Convert to fraction form
280,587.79/420,881.68 = 103,017.97/x - Step 3: Cross multiply
280,587.79x = 420,881.68 × 103,017.97 - Step 4: Simplify right side
280,587.79x = 43,358,374,179.38 - Step 5: Solve for x
x = 43,358,374,179.38/280,587.79 - Step 6: Final answer
x = 154,526.95
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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.