Finding the Fourth Proportional to 390,526.05, 585,578.44 and 177,177.55
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Solution
The fourth proportional to 390,526.05, 585,578.44 and 177,177.55 is: 265,670.76
Step by Step Solution
- Step 1: Write the proportion equation
390,526.05 : 585,578.44 = 177,177.55 : x - Step 2: Convert to fraction form
390,526.05/585,578.44 = 177,177.55/x - Step 3: Cross multiply
390,526.05x = 585,578.44 × 177,177.55 - Step 4: Simplify right side
390,526.05x = 103,751,353,332.02 - Step 5: Solve for x
x = 103,751,353,332.02/390,526.05 - Step 6: Final answer
x = 265,670.76
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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.