Finding the Fourth Proportional to 438,501.60, 605,134.08 and 237,297.60
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Solution
The fourth proportional to 438,501.60, 605,134.08 and 237,297.60 is: 327,471.70
Step by Step Solution
- Step 1: Write the proportion equation
438,501.60 : 605,134.08 = 237,297.60 : x - Step 2: Convert to fraction form
438,501.60/605,134.08 = 237,297.60/x - Step 3: Cross multiply
438,501.60x = 605,134.08 × 237,297.60 - Step 4: Simplify right side
438,501.60x = 143,596,864,862.21 - Step 5: Solve for x
x = 143,596,864,862.21/438,501.60 - Step 6: Final answer
x = 327,471.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.