Finding the Fourth Proportional to 368,931.99, 509,361.18 and 301,110.76
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Solution
The fourth proportional to 368,931.99, 509,361.18 and 301,110.76 is: 415,724.68
Step by Step Solution
- Step 1: Write the proportion equation
368,931.99 : 509,361.18 = 301,110.76 : x - Step 2: Convert to fraction form
368,931.99/509,361.18 = 301,110.76/x - Step 3: Cross multiply
368,931.99x = 509,361.18 × 301,110.76 - Step 4: Simplify right side
368,931.99x = 153,374,132,024.30 - Step 5: Solve for x
x = 153,374,132,024.30/368,931.99 - Step 6: Final answer
x = 415,724.68
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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.