Finding the Fourth Proportional to 390,704.99, 539,256.64 and 237,792.43
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Solution
The fourth proportional to 390,704.99, 539,256.64 and 237,792.43 is: 328,204.52
Step by Step Solution
- Step 1: Write the proportion equation
390,704.99 : 539,256.64 = 237,792.43 : x - Step 2: Convert to fraction form
390,704.99/539,256.64 = 237,792.43/x - Step 3: Cross multiply
390,704.99x = 539,256.64 × 237,792.43 - Step 4: Simplify right side
390,704.99x = 128,231,142,933.99 - Step 5: Solve for x
x = 128,231,142,933.99/390,704.99 - Step 6: Final answer
x = 328,204.52
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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.