Finding the Fourth Proportional to 660,202.36, 989,931.74 and 210,817.60
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Solution
The fourth proportional to 660,202.36, 989,931.74 and 210,817.60 is: 316,107.68
Step by Step Solution
- Step 1: Write the proportion equation
660,202.36 : 989,931.74 = 210,817.60 : x - Step 2: Convert to fraction form
660,202.36/989,931.74 = 210,817.60/x - Step 3: Cross multiply
660,202.36x = 989,931.74 × 210,817.60 - Step 4: Simplify right side
660,202.36x = 208,695,033,590.62 - Step 5: Solve for x
x = 208,695,033,590.62/660,202.36 - Step 6: Final answer
x = 316,107.68
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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.