Finding the Fourth Proportional to 390,933.22, 586,410.08 and 134,763.08
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Solution
The fourth proportional to 390,933.22, 586,410.08 and 134,763.08 is: 202,148.14
Step by Step Solution
- Step 1: Write the proportion equation
390,933.22 : 586,410.08 = 134,763.08 : x - Step 2: Convert to fraction form
390,933.22/586,410.08 = 134,763.08/x - Step 3: Cross multiply
390,933.22x = 586,410.08 × 134,763.08 - Step 4: Simplify right side
390,933.22x = 79,026,424,917.98 - Step 5: Solve for x
x = 79,026,424,917.98/390,933.22 - Step 6: Final answer
x = 202,148.14
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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.