Finding the Fourth Proportional to 415,805.24, 623,643.06 and 135,320.60
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Solution
The fourth proportional to 415,805.24, 623,643.06 and 135,320.60 is: 202,959.81
Step by Step Solution
- Step 1: Write the proportion equation
415,805.24 : 623,643.06 = 135,320.60 : x - Step 2: Convert to fraction form
415,805.24/623,643.06 = 135,320.60/x - Step 3: Cross multiply
415,805.24x = 623,643.06 × 135,320.60 - Step 4: Simplify right side
415,805.24x = 84,391,753,065.04 - Step 5: Solve for x
x = 84,391,753,065.04/415,805.24 - Step 6: Final answer
x = 202,959.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.