Finding the Fourth Proportional to 307,502.13, 424,352.75 and 171,536.05
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Solution
The fourth proportional to 307,502.13, 424,352.75 and 171,536.05 is: 236,719.64
Step by Step Solution
- Step 1: Write the proportion equation
307,502.13 : 424,352.75 = 171,536.05 : x - Step 2: Convert to fraction form
307,502.13/424,352.75 = 171,536.05/x - Step 3: Cross multiply
307,502.13x = 424,352.75 × 171,536.05 - Step 4: Simplify right side
307,502.13x = 72,791,794,541.64 - Step 5: Solve for x
x = 72,791,794,541.64/307,502.13 - Step 6: Final answer
x = 236,719.64
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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.