Finding the Fourth Proportional to 346,331.60, 519,497.40 and 291,219.20
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Solution
The fourth proportional to 346,331.60, 519,497.40 and 291,219.20 is: 436,828.80
Step by Step Solution
- Step 1: Write the proportion equation
346,331.60 : 519,497.40 = 291,219.20 : x - Step 2: Convert to fraction form
346,331.60/519,497.40 = 291,219.20/x - Step 3: Cross multiply
346,331.60x = 519,497.40 × 291,219.20 - Step 4: Simplify right side
346,331.60x = 151,287,617,230.08 - Step 5: Solve for x
x = 151,287,617,230.08/346,331.60 - Step 6: Final answer
x = 436,828.80
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1.5x scale
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.